Fitting together and lubricating a watch's internal components so its mechanism can run and be tested.
Movement assembly, often labeled T1 in watch production, is the stage at which the watchmaker builds the movement from its tested components. Before it, in a stage labeled T0, some parts are pre-assembled, such as pins and jewel bearings fitted into the main plate and bridges, often by specialized operators. The watchmaker then receives the parts as a kit and assembles them along the kinematic chain: barrel, going train, escapement and finally the regulating organ. Depending on the movement’s complexity, this can take up to several weeks, with quality checks along the way.
A production watchmaker also inspects and cleans components, applies lubricant, fits the balance wheel and balance spring, and uses a timing machine to monitor its oscillations and make fine adjustments (regulation). Fitting the dial and hands and casing-up follow as T2.
In job listings
Movement assembly appears in production roles at watch manufactures: production watchmakers, watchmaking operators and apprentices, and quality technicians who inspect assembled movements. It signals bench work on new movements, as opposed to the after-sales repair of a rhabilleur. Listings may name the movements involved, from mechanical and electronic calibers to chronographs. See current watchmaker roles.
