Barrel (watchmaking)



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.

See also

Related Article

  • Composition of a mechanical watch

External link

  • Spring in a watch barrel  [ archive ]


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