Movement components are of course manufactured in La Chaux-de-Fonds, ranging from the basic 1904 MC automatic to the Astrotourbillon.
Below: Samples of the various parts made here, some of the more distinctive include the bridges of the Santos skeleton and the rotor of the ID One.



These are made on a variety of milling and drilling machines.






Raw components from the milling machines are beadblasted to clean them before the tolerances are checked on microscopes.

Above: Raw parts are deburred by blasting them with tiny pellets made of ceramic or other abrasive materials

Above: Tolerances are checked to the micron
click here for Part V. This message has been edited by SJX on 2010-07-08 07:53:36