Draft (watchmaking)



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 .

See also

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.



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