Job Description:

• 1) 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.

• 2) Turns center wheel to ascertain that gears mesh and that train turns easily.

• 3) Examines assembly for cleanliness, oiling of cap jewels, and to determine that wheels are level and in parallel planes, using loupe.