Job Description:

• 1) Tends semiautomatic turning machine to cut recess in watch balance wheel: Fits center hole of balance wheel over pin protruding from face of quill, using tweezers.

• 2) Fits holding ring over wheel and depresses pedal to clamp ring in place.

• 3) Depresses pedal to start machine.

• 4) Observes machine operation to detect malfunction.

• 5) Lifts recessed wheel from pin, using tweezers, when machine automatically stops at end of cycle.

• 6) Verifies contour of recess, using go-not-go gauge, depth of recess, using upright gauge, and quality of cut, using jeweler's loupe.