Numerous stages are required to produce all the movement’s components. Once these have been made and decorated, it is the watchmaker's job to assemble them, adjust them and ensure that the watch runs smoothly.

After the movement components have been checked, they are assembled into a kit and handed over to the watchmaker responsible for assembling the movement. The assembly sequence of a movement generally corresponds to the order of its kinematic chain (barrel, finishing gear train, escapement, regulator). Depending on its complexity, assembling a movement can take up to several weeks of work.

Several quality controls (functions, adjustment, aesthetics) are undertaken during the process, according to each function’s criteria and requirements.

STEPS:

• Each pre-assembly and assembly stage involves very strict criteria described in a dedicated manual and which are combined with the diligence of the master watchmaker.
• Most of the components are pre-assembled: driving in the jewels, pillars and pins, fitting the springs, screwing in the wheels and intermediate wheels, assembling the chain links, etc.
• Once the pre-assembly work is complete, final assembly of the movement's components can begin: winding mechanism, going train, complete fusee-and-chain-and-barrel unit, stopwork, duly adjusted escapement, sprung balance (balance and hairspring), timing, time-setting mechanism as well as fitting of the dial, the seconds flange and the hands.
• Each stage of assembly is subject to rigorous checks on the divisions, the functions of the levers and springs, as well as the free motion of the wheels.