The Sony NW-A80x, is a series of network-compatible Walkman video players, announced in late 2006 and released on May 19, 2007. On May 19, 2007, only the NW-A806 (4GB) and NW-A808 (8GB) models been released. On June 13, 2007, Sony announced that the NW-A800 (2GB) would be included in the series and would soon be available to the public.
The entire body is covered with metal and has a 2.0 “LCD screen covered with glass The three control buttons under the screen are arranged to form the Walkman logo on the front. the design of the NW A800 / 810 is in (more…)
Music for Stowaways is the debut album by English electronic duo British Electric Foundation (BEF), released in the United Kingdom as a limited edition tape in March 1981 by Virgin Records, who also released an LP version of the album titled Music for Listening To later in the year with a different track and art cover, aiming its release for export markets. It was the first ‘minor project’ released by the BEF, based on Martyn Ware and Ian Craig Marsh’s Sheffield musicians. It was originally released concurrently with Ware and Marsh’s first single with BEF’s first major act, Heaven’s 17 ” (more…)
Walkman is a Sony brand tradename, originally used for portable audio cassette players from the late 1970s onwards. Sony Ericsson mobile phones introduced in 2005. The Sony Walkman was blue and silver which contained bulky buttons. It also included an extra audio jack so you could listen at a time. The original tape player Walkman, released in 1979, changed music listening. This could turn everyday tasks like commuting and running into pleasurable experiences, give commuters a sense of privacy, and add a soundtrack to urban surroundings. The Walkman was devised by Sony co-founder Masaru Ibuka, and first built by audio-division engineers (more…)
The Samsung Pebble is a small MP3 / Ogg audio player in the shape of a flat, round pebble. Without a screen, the Pebble is designed to be worn around the neck like a pendant. It has features such as on the go and sound effect buttons on the side. The Pebble is available in 1GB, 2GB or 4GB. It also has a shuffle feature similar to the iPod.
A portable CD player is a portable audio player used to play compact discs. The first audio player released was the Sony D-50.
The basic features of a portable CD player are as follows: The 8 cm CD offers a smaller alternative to the normal 12 cm CD (although with a lower capacity). There are miniature players that only play this format.
Like a normal size CD player, a portable CD player reads bumps and grooves with a laser. With its photocell (a device that detects any kind of light reflection from a certain area), it determines whether there is a reflection of (more…)
A personal stereo is a portable audio player that uses an audio cassette player, a battery and, in some cases, an AM / FM radio. This allows the user to listen to music on the headphones while walking, jogging or relaxing. Personal stereos usually have a belt clip or shoulder strap so a user can attach the device to a belt or wear it on their shoulder. Some personal stereos came with a separate battery case. The first personal stereophonic channel was the Stereobelt invented and patented by the West German-German inventor Andreas Pavel in 1977. Pavel attempted to commercialize this (more…)
Mister Disc (AT770) was a portable record player sold in the early 1980s by Audio-Technica. It has been advertised as “no bigger than a man’s shoe”. It was battery powered, shipped with a set of retractable earphones, and was able to play both 33 and 45 rpm.
Last position memory is a function that allows media playback devices to continue from where a user pauses playback or when the unit is turned off.
The memory of last position goes back to the time of the supports on magnetic tape. For example, cassette tapes and cassettes automatically have this property since they automatically remain where they are when they are paused or stopped. Indeed, tape media can be started and stopped and left at any point, and moved to any point, the only problem being that the more point you want to go into a recording, the more you need (more…)
Lasonic is a product model and an old brand of consumer electronics, including boom boxes manufactured in the mid-1980s through the mid-1990s by Yung Fu Electrical Appliances based in Tainan City, Taiwan. Other products include DVD home theater systems, TVs, DVD players, CD and cassette players, FM radios, speakers, external storage devices, and more. (MP3 / MP4 players, digital photo frames). Yung Fu Technology Electrical Corporation exports products to Lasonic Electronics Corporation which began its portable audio business in 1978 (and when the brand “LASONiC” was renewed and renewed in 2011).
In 2008, Lasonic Electronics Corporation of Irwindale, California, USA, launched the (more…)
The Discman was Sony’s first portable CD player, the D-5 (North America and various other countries) / D-50, the first on the market in 1984, adopted for Sony’s full line of portable CD players . The name was changed to CD Walkman worldwide in 2000 with a revamped “Walkman” logo.
Prior to the development of the CD, cassettes were the dominant form of audio storage for the nascent portable audio industry. In 1979, Sony introduced the Walkman in Japan. As Sony began to realize the potential of the CD, the leaders pushed a way to give the CD player a market boost, (more…)
The digital audio tape (DAT or R-DAT) is a recording and signal playback medium developed by Sony and introduced in 1987. In appearance, it is similar to a compact cassette, using 3.81 mm / 0.15 The adhesive tape is surrounded by a protective envelope, but its size is approximately half that of 73 mm × 54 mm × 10.5 mm As the name suggests, the recording is rather than analogue.The DAT can record at sampling rates higher, equal to or lower than a CD (sample rate of 48, 44.1 or 32 kHz respectively) at a quantization of 16 bits. digital source (more…)
A boombox is a transistorized portable music player featuring one or two cassette tape recorder / players and AM / FM radio, generally with a carrying handle. Beginning in the 1980s, a CD player was sometimes included. Sound is delivered through an amplifier and two or more integrated loudspeakers. A boombox is a device typically capable of receiving radio stations and playing recorded music (usually cassettes or CDs usually at a high volume). Many models are also capable of recording tape from other sources. Designed for portability, boomboxes can be powered by batteries. The boombox was introduced to the American market (more…)
A portable media player (PMP) or digital audio player (DAP) is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files. The data is stored on a CD, DVD, flash memory, microdrive, or hard drive. Most portable media players are equipped with a 3.5 mm headphone jack, which users can plug headphones into, or connect to a boombox or hifi system. In contrast, analog portable audio players play music from non-digital media that use analog signal storage, such as tape tapes or vinyl records. Often mobile digital audio players are marketed and (more…)
A portable audio player is a personal mobile device that allows the user to listen to recorded audio while it is mobile. Sometimes, a distinction is made between a portable player, powered by a battery and one or more small speakers, and a personal player, listened with headphones.
Battery-operated portable voice recorders were introduced in the 1950s, initially in high-price reporters produced by Uher and Nagra. Low-cost units became available later. In the mid-1960s, Philips introduced the battery-powered compact cassette recorder, originally used for speech recording. At the same time, the 8-track player was introduced. It was very successful at the time, (more…)
The IXI was the first digital audio player in the world and was invented by Kane Kramer in 1979. In 1981, Kramer filed a British patent. British Patent 2115996 was issued in 1985, and US Patent 4,667,088 was issued in 1987. In 1988, Kramer failed to raise the £ 60,000 required to renew the patent in the public domain, but he is still the owner. IXI was about the size of a credit card and had an LCD screen and navigation and volume buttons. Four prototype models were built and pre-produced during the APRS exhibition at Earls Court in London.
The Sony Watchman is a range of portable televisions trademark and produced by Sony. The line was introduced in 1982 and discontinued in 2000.
The initial model was introduced in 1982 as the FD-210, which had a five-centimeter screen in grayscale. The apparatus weighed about 650 grams, with a measurement of 87 x 198 x 33 millimeters. The device was sold in Japan with a price of 54,800 yen. About two years later, in 1984, the device was introduced in Europe and North America.
Sony manufactured more than 65 Watchman models before it was discontinued in 2000. When new models were released after (more…)
Portable equipment indicates a configuration that allows for relatively fast collection, transport and deployment of amateur radio equipment. Licensed operators often engage in portable operations using radio equipment when traveling. A portable station can be anything, from a small QRP (Low Power) radio and an antenna, to a high-end platform, depending on the space. On long-haul shipments, such equipment allows them to report progress, and sometimes to exchange safety messages along the way.
The “portable” operation is usually meant by amateur radio operators who add the suffix “/ P” to their callsign. The use of ‘/ P’ normally means that stations operate (more…)
A handheld video camera is a camcorder without a cassette that is small enough to be carried in one’s pocket. Most pocket camcorders are mobile phones of shape and size, unlike traditional cameras. A typical pocket video camera has an LCD screen of at least 1.5 “, the ability to capture high definition video (H.264 / MPEG-4 AVC) and standard video (or just standard video ), 128 MB of internal memory and a Secure Digital (SD) card or an internal memory card of at least 4 GB with SD card slot The battery can be supplied by a Ni-MH rechargeable battery (more…)
Nixie is a small drone equipped with a camera that can be worn as a bracelet. Nixie can be activated on a quadcopter, fly in one of its preprogrammed modes to take photos or video, and then return to the user. In competition with over 500 other attendees, Nixie’s developers became the winning team in the development of Intel’s Make it Wearable contest on November 3, 2014, earning $ 500,000 in seed capital to develop Nixie into a product. . The developers have declared their goal of developing the drone in the next generation of point-and-shoot cameras. , the device was (more…)
The MTV-1 Micro TV was the second model of a pocket television. The first was the Panasonic IC Model TR-001 introduced in 1970. The MTV-1 was developed by Clive Sinclair (Sinclair Radionics Ltd). It was shown to the public at the London and Chicago trade fairs in January 1977 and went on sale in 1978. It lasted 10 years and included an injection of (approximately) British government money in 1976. The MTV-1 used AEG Telefunken black and white, electrostatic cathode ray tube (CRT), the smallest commercially available CRT product, and included a rechargeable NiCad battery 4 AA batteries. He measured and (more…)
A liquid contact indicator (LCI) is a small indicator that changes to another color, usually red, after contact with water. These indicators are small stickers that are placed on several points in smartphones and smartphones. In the case of a defective appliance, a personal service may check whether the appliance has been in contact with water. After contact with water or other liquids, the appliance is not covered by the warranty. Liquid contact indicators are also known, a water damage sticker, a water contact indicator, a liquid submersion indicator.
The main purpose of liquid contact is a defect in electronic devices. The (more…)
A portable TV is a portable device for watching television that usually uses a TFT or OLED LCD color screen. Many of these devices look like portable transistor radios.
In the 1970s and early 1980s, Panasonic and Sinclair Research released the first TVs that were small enough to fit in a large pocket; called the Panasonic MODEL TV TV TR-001 and MTV-1. Since LCD technology was not yet mature at the time, television was using a tiny cathode ray tube that set the record for being the smallest cathode ray tube on a commercial product. Later in 1982, Sony released the first (more…)
A portable DVD player is a mobile DVD player powered by battery in the format of a mobile device. Many recent players play files from USB sticks and SD cards.
Portable DVD players have been created to help DVDs away from home. They were created in 1998, introduced for the first time by Panasonic. They are convenient for using digital audio and video. Many consumers use portable DVD players for tracking, including on buses, and international flights.
The popularity of low cost portable portable DVD players in North Korea allows families to watch Chinese and South Korean shows on SD cards and USB (more…)
In body worn equipment, body worn camera, portable camera recording, portable digital recording device (abbreviated to PDRD) is a wearable audio, video, or photographic recording system used to be used in the case of police officers or other law enforcers. the military, but are designed to address specific requirements related to law enforcement.
The definition used in a market survey prepared for the United States Department of Justice in 2016 is that the body worn cameras are at least one of the two, and allow for audio / video footage. The cameras are usually located on the police officer’s chest or head (more…)
Body-worn video (BWV), also known as body and body-worn cameras, or portable cameras is a portable audio, video or photo recording system. Body-worn video has a range of uses and designs, two of which are well known. Other uses include action cameras for social and recreational (including cycling), commerce, health and medical use, journalism, citizen underwriting and covert surveillance. Recent research on the impact of body-worn cameras on law enforcement agencies shows mixed evidence of the impact of cameras on law enforcement and community confidence in the police.
Body-worn cameras are often designed to be worn in one of three places: on (more…)
Mobile computing is a human-machine interaction that should be transported during normal use, allowing the transmission of data, voice and video. Mobile computing involves mobile communication, mobile hardware and mobile software. Communication problems include ad hoc networks and infrastructure networks, as well as communication properties, protocols, data formats, and concrete technologies. The hardware includes mobile devices or device components. Mobile software deals with the characteristics and requirements of mobile applications.
Some of the most common forms of mobile computing are:
Many commercial and government field forces deploy a rugged laptop with their fleet of vehicles. This requires the driver’s devices, the safety device (more…)
A stopwatch is a pocket watch designed to measure the size of a time when it is activated when the room is deactivated. A large digital version of a stopwatch designed for remote viewing, as in a sports stadium, is called a chronometer. In manual synchronization, the clock is started and stopped by a person pressing a button. In fully automatic time, start and stop are triggered automatically by sensors. Synchronization functions are traditionally controlled by two buttons on the case. Press the top button to start the timer and press the button a second time to stop it, leaving the (more…)
A wound is an object around which lengths of another material (usually long and flexible) are wound for storage. Generally, a spool has a cylindrical core and walls on the sides to retain the material wrapped around the core. In some cases, the core is hollow, but other items may be mounted thereon, and handles may exist to mechanically rotate the coil.
The size of the nucleus depends on several factors. A smaller kernel would be more likely to be stored in a given space. However, there is a limit to how the stored material can be rolled up without damaging it (more…)
Man-portable air-defense systems (MANPADS or MPADS) are shoulder-launched surface-to-air missiles (SLSAMs). They are a leading guide to low-flying aircraft, especially helicopters.
MANPADS were developed in the 1940s to provide military ground forces with the protection of enemy aircraft. They have received a great deal of attention because they have been used against commercial airliners. These missiles, which are available from a variety of sources, have been used successfully in the past. Twenty-five countries, including the United Kingdom, the United States, Sweden, and Russia produce man-portable air defense systems. Possession, export, and trafficking in such weapons are officially tightly controlled. The missiles are (more…)
In June 1945, a Chicago businessman, Milton Reynolds, was in Buenos Aires, Argentina, when he encountered the first commercially available ballpoint pen, the Biro pen. In October 1945, Milton Reynolds was able to debone the Biro pen and was the first to manufacture and sell ballpoint pens in the US market. The “Reynolds Rocket” pen was introduced at the Gimbel department store in New York, selling pens worth $ 100,000 on the first day. In 1945, the demand was 30,000 pens per day, making it the number one American ballpoint pen. However, in three years, the price of the pen has (more…)
The Samsung Gear 2 is a smart watch developed by Samsung Electronics .
It was presented at the Mobile World Congress 2014 in Barcelona.
Its operating system is no longer Android as on its predecessor the Galaxy Gear , but under Tizen 1 . It has an Exynos processor and was launched in April 2014.
The Samsung Gear 2 comes in two versions, one called Gear 2, which includes a 2-megapixel camera with auto-focus that can make videos in 720p, and the other called Neo or Lite (see Light for The French market) that does not have a camera.
watchos is the operating system of Apple Watch , developed by Apple Inc . It is based on the iOS operating system and shares many of its features. The operating system was launched on, The same day as the Apple Watch. The Apple Watch is currently the only device to operate under watchOS . Its API is called WatchKit .
At the WWDC 2015 , watchOS 2 was briefly presented for the first time. This new version of the operating system includes many new features, mainly the possibility of launching native applications. Its release was scheduled for September 16, 2015, (more…)
The Pebble Watch is a connected watch distributed by Pebble Technology, on the non-touch screen. Its design and implementation were made possible by a major campaign participatory finance ( “crowd funding”) through Kickstarter 2 .
In , Pebble reaches 85,000 orders by 66,434 people on Kickstarter, for a record $ 10 million fundraising 3 .
In , Pebble launches a metal model, the Peeble Steel, and a new version of its Android and iOS 4 applications .
In , Pebble has sold more than 400,000 copies of his watch 5 .
In , The company has sold 1 million connected watches (more…)
A physical activity monitor (also referred to as activity monitor or sports monitor ; in English, activity tracker 1 ) is an electronic device or implementation to measure the intensity and amount of physical activity performed by a person such Distance or run distance, consumption and calorie expenditure , and in some cases, heart rate and quality of sleep . The goal of the monitor is to increase the motivation of its user and allow him to improve his performance.
The term is now used primarily to refer to dedicated electronic monitoring devices that are synchronized , in many cases wireless, to (more…)
Microsoft band is a wristband connected to touchscreen rectangular announced on 29 October 2014.
This is the first device powered by Microsoft Health , the new health service Microsoft . It is marketed in the United States since October 30, 2014 for $ 199 1 .
The bracelet incorporates ten sensors to give continuous heart rate, number of steps, number of calories burned, information on sleep, stress level, skin temperature, ambient brightness, Intensity of ultraviolet rays 1 .
Many applications are pre-installed to answer SMS , make calls, view appointments, weather, stock quotes, time a performance, start a countdown, receive e-mails, Facebook and Twitter (more…)
A smartwatch , literally “smart watch” is a show computerized wristband with features beyond simple display of time and timing, with comparable characteristics to those of a PDA . They should be considered as wrist computers. The term ” connected watch” is also used for watches with wireless connectivity with technologies such as Bluetooth and Wi-Fi 1 .
While the early models, which appeared in the 1980s , were able to perform basic tasks such as calculations, calendar-planning and then translations or games, modern smartwatches have become computers in their own right. Some smartwatches can run mobile applications , run on a (more…)
Top Marques Monaco is one of the largest fairs annual of luxury in the world, with mainly supercars but also yachts , helicopters , motorcycles , fashion (apparel) , watches , jewelry , art , real estate 2 … It takes place every year The end of April since 2003 in Monaco , and visited more than 36,000 visitors in 2014 1 .
In 2003, Lawrie Lewis founded and presided over this exceptional international luxury show, under the patronage of Prince Albert II of Monaco , with a four-day duration at the Grimaldi Forum Monaco , the port of Monaco and (more…)
The International Fine Watch Exhibition (SIHH) is a worldwide private fair for watchmaking and jewelery held in Palexpo , Geneva , Switzerland .
Its first edition dates back to 1991 with five brands installed on 1 000 m 2 at the initiative of Alain-Dominique Perrin 1 . It usually takes place in January. The exhibition is open to professionals and the press on an area of 40 000 m 2 with sixteen watch houses presenting their novelties.
In 2015 held the 25 th edition 2 , which welcomed 14,500 trade visitors and journalists 3 .
With Baselworld , the SIHH is considered as a (more…)
Baselworld is a worldwide watch and jewelery trade fair held in Basel , Switzerland .
Its first edition dates back to 1917. The fair is generally held during the last weeks of March on an area of 141,000 m 2 . It brings together about 1,500 exhibitors 2 from 40 different countries 3 for about 150,000 visitors 4 .
The exhibition is the main event of the watch and jewelery industry 3 .
Baselworld 2015 corridor.
On April 15, 1917, the first “Swiss Basel Sample Fair” (muba) 5 , 6 , 1 was held . A total of 831 companies from various branches of the (more…)
The watch glass also known as ice shows , is the transparent part which allows both to read the signs and protects its constituent parts. Not to be confused with watch glass : laboratory equipment .
Initially, made of glass and then of composite materials , either plastic , for example Plexiglass , or glass-based, developments in the techniques of processing synthetic sapphire ( monocrystalline corundum ) allowed its use for the majority of Quality watches, combining impact resistance with scratch resistance, as well as a quasi non-existent coefficient of expansion , ensuring high stability and durability.
The winding stem is a rod that connects the crown of a mechanical watch to the mechanism, called “movement”, in order to act on the latter.
Its primary function is to allow the winding of the watch. Without it, the reassembly and the setting on time were done by key. Often threaded in modern watches, it was frequently section driven into the crown for older watches. It is part of the draft . It is also used for certain models to set the time or date. On old watches, the rod only allowed a rotary movement, the time was set by simultaneously (more…)
The shock absorbing systems are used in the mechanical movements to protect the critical alignment of the axes of the rocker in the event of a shock.
The anti-shock system protects the balance pins by means of very thin steel springs (mounted at the end of axes). Normally a timepiece (also called ” ruby “) is inserted to hold each end of axis. The pivots and rubies of the pendulum are very fragile in comparison with the mass they have to bear. Without shock protection, the smooth running of the movement would be quickly disrupted.
The spiral spring , with non-contiguous and therefore frictionless spirals, is composed of a ribbon of rectangular section embedded at one end B and secured at the other end O to an axis perpendicular to the winding plane.
In this watch bracelet, the spiral has blue reflections.
In watchmaking , the spiral spring is a small spring coiled in a spiral and constituting with the balance the regulating member of the mechanical watch . It returns the pendulum to its starting position at the end of each alternation.
We will assume that the axis is movable without friction and, less obviously, that it does (more…)
The motor spring or (in clockwork) spring barrel is a spring enabling to store energy when it is tensioned, and to restore it during the trigger. Most of the time it is a metal strip of hardened steel wound on a wheel. The energy returned is transmitted by a set of gears . In some applications, the system is regulated by a rotating vane (air friction attenuates variations in speed) or by an exhaust system .
In general, the spring is reloaded by a knob (the crown of a watch, called crown ) or by a removable key (clocks, toys).
A regulator is a skilled worker 1 or technician whose role is to regulate the machines of production. The settings of the machines include the parameters, the tools, the cadences, the laying of the molds 2 , etc. The controller is responsible for level 1 maintenance and preventive maintenance .
A regulator, or a regulator, is a specialized worker, often a female worker 3 , who performs the adjustment operation . The latter is to position exactly and riveting thoroughly the spiral spring to the pendulum , to form the regulating device or regulating organ a movement 4 . Today this (more…)
The plate is the base plate supporting all the components of the mechanical movement of a watch . It is part of the draft . Normally made of brass , it can also be manufactured from precious metal , or synthetic sapphire .
The plate is provided
Of the incrustations necessary for housing the other elements of the movement;
Of screw threads necessary for fastening bridges ;
A center hole allowing the passage of the pinions fixing the needles ;
Two holes for fixing the dial on its upper part;
Of a lateral thread on its upper periphery for fitting inside the (more…)
The perpetual calendar is a watch complication consisting of displaying on a mechanical watch the day of the month (the date ), the month and the position of the year in the cycle of the leap years automatically: the change from the last day of the month to 1 st of the following month does not require any date correction by the user, including February 29 of a leap year .
Perpetual calendar watches were long regarded as masterpieces of watchmaking , so rare. There are now perpetual calendar watches of a more current production and at an affordable price.
The bridge is in timepiece a part forming part of the blank , counteracting one or more axes of the mechanism of movement to the plate .
A mechanical watch generally comprises a barrel bridge which holds the driving member, a gear train bridge and a bridge holding the exhaust wheel . They are sometimes assembled in one piece. The bridge that holds the pendulum is called the cock.
The bridges are likely to be decorated by anglage, engravings or coasts of Geneva. In the case of a skeleton watch , they are hollowed out in order to give more transparency to the (more…)
The watch stones are used in particular for the manufacture of bearings which support the pivots of axes of the wheel in steel . They are then presented (see drawings opposite) in the form of a drilled disc (to hold the pivot in its horizontal axis) or a flat disk applied against a drilled disc (counter-pivot, limiting the ebat in the axis vertical). They also serve as pallets at the anchor (parallelepiped shape), an ellipse fixed on the pendulum which receives the pulse (ellipse, triangle or half cylinder), or much more rarely a friction cylinder in certain cylinder watches (Tube segment).
A regulating or regulating or oscillating member , in timepieces , dispenses the period of time required for its subdivision in seconds , minutes and hours for the indication of the time and the date and any other indication of a desired horological complication . Its headings are:
For clocks and clocks: the foliot, the pendulum;
For mechanical watches: the assembly formed by the balance and the hairspring after the delicate operation of their assembly, called adjustment ;
For electronic watches: it can be a rocker-motor, a sound resonator or a crystal of quartz.
The oscillating weight (also known as the rotor ) of an automatic watch is a component that rotates freely and arms the motor spring . This device allows an automatic wristwatch to continue functioning as long as its owner wears it at the wrist .
In clock making , exhaust is a mechanism generally placed between the energy source ( spring , weight, etc.) and the regulating member. The escapement is to maintain and count the oscillations of the pendulum of a clock or the balance of a watch 1 .
In a gravity clock, it is also intended to contain the acceleration effects due to the gravitas exerted by the weights. When one has the idea of giving the clocks a new engine by using the gravity of solid bodies, one can easily see that these bodies have the same disadvantage as water, that of accelerating (more…)
The purpose of lubricants is to limit the friction between the parts of a watch movement , they are essential to ensure the smooth operation and reliability of the watches .
The development of fats and oils used in watchmaking and their techniques of application are a field in full evolution. Like John Harrison who built his 4 marine chronometers tropical wood, self lubricating, the trend is looking for materials with the same property.
Protecting the movement against moisture and impurities by a perfectly sealed housing is necessary to keep oils and greases fluid .
The draft in horological is the set of unassembled pieces of motion (platinum, bridges, train, winding mechanism and setting the time, setting racket) and marketed in this form.
However, they are not part of the preform, the regulating elements ( exhaust , balance – spring spiral ) and the motor spring .
” 150 th anniversary of the factory Fontainemelon (1793-1943) ,” Rero , The Watch Federation Switzerland, n o 43,, Pp. 1-23 ( read online [ archive ] [ PDF ]) Retraces the technical evolution of the draft.
The date disc is a disc, normally brass , a circular area , part of the draft of a caliber of shows . Once decorated with a background, usually white, and date indications printed, it is housed in an ad-hoc milling of the plate , connected to the movement by its gear .
Date Disc Types
The most common type is not stating that the day of the month, followed by the combination of time and an indication of the month abbreviated to three letters. Other variants offer the indication of the names of days and months in full.
In watchmaking , the crown is a round piece that is turned to raise the watch or put it on time. It is part of the clothing of the watch and as such its design is sometimes very neat. The slice is generally fluted , to facilitate grip, and the back can be engraved with the brand logo.
It is screwed or pushed and adjusts by its barrel in the opposite direction on the winding stem which ensures its sealing.
A crown may be impermeable if its fastening is adjusted by its barrel in the middle part of the box.
In watchmaking , a complication is a function other than the display of time, minutes and seconds. They are particularly sought after by amateurs in mechanical watches .
These functions can be astronomical (phase of the moon , equation of time, perpetual calendar, sunrise and sunset Sun ), practical (chronograph, large bell, minute repeater), technical (Quick Date, second stop) or Improve walking precision (originally the whirlpool ).
Complications are modules added to the movement of the watch. A so-called complicated piece also induces a notion of high watchmaking know-how which is expressed both in the manufacture of the caliber and in the degree (more…)
A dial is generally a flat, circular or rectangular surface with evenly spaced identical numbers or indicia regularly used to display values on measuring instruments , apparatus setting devices, radios , and analog clocks . A specific case is the sundial .
Dial gauge graduated from 0 to 600 bars .
Clock with a watchmaker four (IIII instead of an IV).
The barrel is a thin cylindrical box with a toothed edge that drives the watch’s gear , activated by the unwinding of the motor spring – the barrel spring – that it contains, fixed inside by a central axis .
The energy accumulated by the winding stem or the oscillating weight is thus transmitted to the rest of the movement of the watch.
The balance is a moving part used to regulate the movement of a clockwork mechanism .
Rocker of a clock
Balance with anchor exhaust
Clock mechanism with rocker, Lichtenwalde Castle Clock Museum
The pendulum of a clock is a moving element that is reciprocated in a reciprocating motion. It is horizontal or circular at the beginning and is called foliot or pendulum in current watches. It may also take the form of a pendulum , consisting of a vertical rod, capable of oscillating about a horizontal axis, and having a weight at its low end. This weight is generally in the form of a domed (more…)
Timepiece assortment is the set of parts forming the escapement of any mechanical watch movement transmitting the pulses of the watch regulating member formed by the balance / balance spring assembly . During the development of the watchmaking art, several systems were developed and used. Faced with the development and the competition of movements with organ regulating Quartz , a single mechanical system could survive by its performances.
The anchor assortment
The anchor assortment (of its shape, reminiscent of that of a marine anchor), NIHS 02-04, Chapter 6, section 6.4, is composed of the following three parts:
In horology , a tourbillon , also called “rotating cage,” is a complication watch, added to the mechanism of exhaust , designed to improve the accuracy of mechanical watches by offsetting the disruption of the isochronism of the balance due to gravity earth. This mechanism was invented by the French watchmaker Abraham-Louis Breguet in 1801.
This device is very complex to realize, which is why it equips very few mechanical watches.
Animation of a carousel, variant of the tourbillon
Animation showing the different positions of the vortex and the delaying or accelerating effect of gravity
Abraham-Louis Breguet (1747-1823), a watchmaker for French royalty, worked alongside (more…)
The TAG Heuer Monaco (originally Heuer Monaco ) is a model of automatic mechanical wrist chronograph produced by the Swiss watch brand Heuer in 1969 in reference to the Grand Prix automobile of Monaco .
When it was launched in 1969, the Monaco is a watch that combines blue, white, red, particularly innovative with its square design and angles, while the fashion is with round, flat, gold-plated watches with a white dial. Monaco is the first waterproof square case and the world’s first self-winding mechanical chronograph with the 11-gauge Chronomatic micromotor caliber (12 gauge ) developed with Dubois-Depraz and Hamilton-Buren 1(more…)
The Seiko Quartz Astron-35SQ watch is the first quartz watch in the world, using a quartz oscillator.
It is on the list of the IEEE Milestones grouping together the major advances in electronic engineering.
The Astron was unveiled on In Tokyo after ten years of research and development in Suwa Seikosha (currently Seiko Epson), a Seiko group company . In less than a week 100 gold watches were sold at a retail price of 450,000 yen ( 1,250 US $ ) which at the time represented the equivalent of the price of an average car 1 .
Seiko 5 or Seiko Five is a series of low-cost watches manufactured by the Japanese watch company Seiko . Although they are official Seiko watches, the manufacturer does not present them on its website. The identification of these watches is easy: they have on their dial a badge “5” just below the inscription Seiko.
This range of watches was born in the 1970s from a simple idea that gave it its name: to provide the five essential functions expected of a timepiece. Thus, the Seiko 5:
The Samsung Galaxy Gear is a smartwatch developed by Samsung Electronics and unveiled at the Unpacked 2013 event at the Tempodrom in Berlin . It is intended to be used with a compatible device, essentially the devices of the range Samsung Galaxy turning at least under Android 4.3 .
This one-centimeter and 73.8-gram watch , equipped with a single-core processor running at 800 MHz (the autonomy is 25 hours) is made of solid stainless steel and has a Super AMOLED screen of 320 X 320 pixels (ie 278 dpi) and 1.63 inch (ie 4.14 cm ). Its telephony equipment, is composed of (more…)
The Rolex Oyster Perpetual Submariner is an automatic movement watch manufactured by Rolex . It is designed for diving and is known for its resistance to water. The first Submariner was presented to the public in 1953 1 at the Swiss Watch Fair. It is the first waterproof watch at 100 meters . Today, it is designed to withstand the pressure exerted at 300 meters depth 1 . The Rolex Submariner is part of the Oyster professional collection within the Rolex range.
The Rolex Oyster is a mythical model of automatic movement watch manufactured by Rolex . It is one of the earliest water resistant wrist watches, manufactured in 1927 1 .
After solving the problem of reliability, Hans Wilsdorf began to work on the second major defect of the watches of the time: dust and moisture infiltrated under the dial and the crown, damaging the movement. To remedy this situation, the brand develops and, The Rolex Oyster , the first waterproof watch with a revolutionary crown.
The consumers of the time remain however skeptical as to the faculty of a watch to (more…)
The Rolex Oyster Perpetual GMT-Master is an automatic movement watch manufactured by Rolex . The first GMT-Master was presented to the public in 1954 . Originally developed as a result of a request from the Pan Am 1 who wanted a watch for its pilots on transcontinental flights. The special feature of the GMT is to indicate an additional time zone by means of a 24- hour hand (in green on the image). The Rolex GMT-Master is part of the Oyster Perpetual collection within the Rolex range.
This watch was worn by Chuck Yeager onWhen he established the first passage (more…)
The Rolex Oyster Perpetual Datejust , more simply known as the Datejust is a watch model mechanical with automatic winding manufactured by the watch brand Rolex . When it was launched in 1945, this model was the first wrist watch to offer the date as function 1 , 2 .
The prices of the used Datejust shows an upward trend: the average price increased by 182% in ten years for a yellow gold model 3 .
↑ ( in ) Frank Edwards , Wristwatches: A Connoisseur’s Guide , New York, Firefly, ( ISBN (more…)
The Speedmaster is a chronograph model of the Swiss watch brand Omega . She is known to have been the only watch officially worn on the moon . It is also the only watch to be approved for all NASA 1 manned flights . The Speedmaster is still part of all the missions planned by NASA.
The name Speedmaster comes from the tachymeter bezel of the chronograph. The brand hesitated between Chronomaster , Flightmaster , Speedmaster . The first version of the Speedmaster appeared in 1957 , it was part of a trio of innovations sharing a little the same aesthetics and (more…)
The Omega Seamaster is a range of mechanical or quartz wristwatches produced by the Swiss watchmaker Omega and having as a common point a good waterproofness. The Seamaster introduced in 1948 is based on an evolution of waterproof watches that Omega supplied to English soldiers during the Second World War. It quickly conquers a public attracted by the sporty and elegant aspect of the range. In 1957, the “professional” version with a stainless steel case and bracelet, a 3-hour crown, a rotating bezel and a screwed and engraved bottom of the hippocampus, symbolized by Omega , An immersion resistance ranging from (more…)
The Reverso is an emblematic watch of the Swiss watchmaking brand Jaeger-LeCoultre created in 1931.
The concept that gave birth to the Reverso was born in 1931 in a British polo club in colonial India. César de Trey, a Swiss citizen, luxury watch distributor and close friend of Jacques-David LeCoultre, then crossing the country for business 1 . At the end of a polo match, one of the players – a British army officer – shows Trey his timepiece with broken ice and challenges him to develop a model that is robust enough to withstand the shocks caused by the practice of (more…)
The HP-01 , code-named “Cricket” 1 , was the first watch / calculator from HP and the first small calculator algebraic. This watch, priced at $ 750 for the gold-plated version and $ 650 for the stainless steel version, was produced from 1977 to 1980 2 .
It is a digital electronic wristwatch , a personal calculator, an alarm clock, a stopwatch, a timer, a calendar of two hundred years, and so on. The HP-01 offers the possibility of combining time and calculation functions 3 .
The watch dial has 28 lowercase keys 2 , four of which are raised for faster access: (more…)
Gyromatic ( Greek word γύρος gyros , rotation ‘and automatic’ ) refers to a series of Girard-Perregaux watches produced between 1957 and 1979.
The Gyromatic are self- winding watches . The first models contained 21 or 22 series calibres , with a defined pendulum frequency of 18,000 vibrations per hour. From 1962 onwards, the Gyromatic were fitted with 32 series gauges and their frequency was increased to 21 600 rpm (with the exception of the 32.7 and 32A gauges). The calibers of the 32 and 42 series are based on Anton Schild ‘s AS 1687/1688 calibres . The automatic winding was developed (more…)
G-Shock ( Japaneseジ ー ョ ッ ク ク) is a Japanese watch brand founded in 1983 and belongs to the group Casio . The name G-Shock is the diminutive of Gravitational Shock . These watches are mainly designed for military use 1 , 2 , professional or extreme sports 3 . They are exclusively quartz watches with digital , analog or mixed display , the quartz movement being more precise than mechanical movement .
The first G-Shock was designed by Kikuo Ibe Yuichi Masuda and to equip the workers of the building at a time when the resistance of the watch was (more…)
Cartier Tank is a series of watches of the brand Cartier .
A Renault FT tank.
The first model was designed by Louis Cartier in 1916 1 or 1917 2 . In 1918 , after the First World War , Cartier offered the first copy to General Pershing 3 , then the watch was marketed from 1919 .
This is a square wrist watch , like the Cartier Santos created in 1904 . Its shape, along with the “stretchers” (the horns) in the prolongation of the casing, bring it closer to the appearance of a tank of assault of the time, and in particular (more…)
The Apple Watch is a connected watch unveiled onBy Apple .
It is unveiled at the press conference corresponding traditionally to the launch of new range of iPhone . It has been available for pre-order since April 10, 2015 3 and is marketed since April 24, 2015 4 , 5 . It can be paired with an iPhone . It can be recharged with a new induction connector or a base (not supplied).
In September 2016, Apple launched the release of a new generation of Apple Watch (Series 2).
Genesis and Presentation
The Apple Watch project would have started in 2008 in the (more…)
Futurematic is the name of a series of watches with automatic winding of Jaeger-LeCoultre , produced between 1951 and 1958.
The Futurematic was the first automatic watch without a winding crown . There was only a flat crown at the bottom of the case to adjust the time. The Futurematic was presented in two iterations of the dial and movement , the E501 and E502 . The first model E501 had two small indications with needles to display the power reserve and seconds. The model E501 keeps the calibres K497 , K497 / 1 or KP827 . The E502 version had two (more…)
The “Delirium” is the Swiss watch still holding today the world record of thinness [ref. Necessary] with less than 2 mm total thickness. Designed in 1978, it was marketed from 1979 by only 4 duly selected watch brands.
In 1978, at the height of the Japanese offensive in quartz watches, the Swiss watch industry was still far behind (ref. Required] . It was therefore necessary to react quickly, especially in the competition of then towards thinness, a certain advantage of quartz on mechanical movements. ETA Manufacture Horlogère launched a search for a solution to beat the Japanese on their own ground: to (more…)
The Breitling Navitimer is an automatic movement watch manufactured by Breitling , originally designed for pilots and aviation professionals.
It has a telescope slide rule circular to solve current transactions relating to air navigation : average speed, distance traveled, fuel consumption, rate of climb or descent, converting miles to kilometers or miles nautical for example.
The first Navitimer was presented to the public in 1952 1 .
2 ( en ) http://www.breitling.com/en/models/navitimer/navitimer-01/presentation/index.php# [ archive ]
The Blancpain Fifty Fathoms is one of the most famous models of the Swiss watchmaking company Blancpain .
It is considered the first military diving watch 1 . It was founded in 1953 at the request of Captain Robert Maloubier and Vessel Marshal Claude Riffaud who, a year earlier, created the Combat Swimmers’ Corps, the first French unit of combat swimmers, Then in search of a robust and reliable dive watch, adapted to military requirements 2 . This is how the Fifty Fathoms was born , waterproof to a depth of 50 fathoms, as the name suggests.
The A. Lange & Söhne 1815 or more simply, the 1815 , is a watch of the prestigious German watch manufacturer A. Lange & Söhne . Its name pays tribute to the birth year of the founder of the factory, Ferdinand Adolph Lange, born on In Dresden.
When this model was released in 1995, it was the fifth model of the new era of the company Lange 1 .
↑ ” A. Lange and Söhne 1815: a classic watch and class … simply ” [ archive ] , montres-de-luxe.com, (Accessed in April 2013 )
Zenith is a Swiss watch manufacturer founded in 1865 by Georges Favre-Jacot.
The brand has been part of the luxury group LVMH since 1999 and sells high-quality watches .
History of the manufacture
It was in 1865 , at the age of 22, that Georges Favre-Jacot 1 chose the town of Le Locle to create a watchmaking factory called “Fabrique des Billodes”, named after the district where it is located. Only later did she take the name “Georges Favre-Jacot and C ie“ . Quickly, the company broke with the traditional system of establishment 2 , 3 , Georges Favre-Jacot will be the first (more…)
This article contains a list of watch companies , ie companies that manufacture time measuring instruments , called “timekeeping” and in the current “watch” language (sometimes “wristwatch”, “watch” Or “gusset watch”).
Year of foundation
Place of creation
Montilier Watch Co
1852 / 1931
Aktiengesellschaft für Uhrenfabrikation Lenzkirch (AGUL)
Ignaz Schöpperle and Eduard Hauser
A. Lange & Söhne
Ferdinand Adolph Lange
American Waltham Watch Company
David Davis, Edward Howard and Aaron Lufkin Dennison
Ice-Watch is a watch brand created in 2006 by the Belgian Jean-Pierre Lutgen. The brand wants to enter the market of entry-level watches, offering them with several colors from the pallet of the polymer industry. Ice-Watch offers a range of more than 500 references that are all equipped with the Miyota precision movement or a Seiko movement for the Ice ranges and its variations as well as a seal of 10 ATM.
The brand Ice-Watch was born in Belgium in December 2006 under the impetus of a Belgian entrepreneur, Jean-Pierre Lutgen. At the time, he runs a company active in promotional items (more…)
Carl F. Bucherer is a company Swiss of watches based in Lucerne .
Since its creation in 1888, the company is the exclusive property of the Bucherer family In 2015, the company is led by a member of the 3 th generation of the family, Jörg G. Bucherer, as chairman of the board of Administration 1 .
Carl F. Bucherer watches are distinguished by their additional functions, such as chronograph , flyback function, tachometer or tourbillon , as well as displays and indicators, such as large date and day, reserve walking, viewing 24 hours of the moon phases, three time zones, calendar and (more…)
Zeno-Watch Basel is a Swiss watch manufacturer created in 1868 by Jules Godat, a native of La Chaux-de-Fonds ( canton of Neuchâtel ).
In 1917 , André-Charles Eigeldinger resumed watchmaking Godat 2 . He specialized in the production of military watches, computational watches and pocket watches in silver, gold and platinum. Eigeldinger & Fils (EBOSA SA) registered the trademark in 1922 under the name of ZENO.
In 1966 , the factory was bought by Félix W. Huber and moved to Basel .
The company ZENO-WATCH BASEL is now specializing in the manufacture of watches Pilot ( aviation ) mechanical caliber (up to 55 mm (more…)