Inspect assembled watch trains.
What does a Watch Train Inspector do?
Inspects assembled watch train for vertical play of wheels, meshing of gears, and cleanliness of movement, using watchmaker’s tools and loupe: Moves wheels up and down to test endshake, using tweezers, and determining from experience whether shake is within acceptable limits. Turns center wheel to ascertain that gears mesh and that train turns easily. Examines assembly for cleanliness, oiling of cap jewels, and to determine that wheels are level and in parallel planes, using loupe. Rejects or accepts watch train assemblies and places defective assemblies in trays according to type of defect.