Job Description:

• 1) Inspects and adjusts watch hairsprings after assembly to pillar plate for conformance to mechanical specifications, using loupe, holding device, and tweezers: Mounts assembly in holding device.

• 2) Examines outer coil to verify that coil is centered between regulator pins, and that positioning of overcoil is within acceptable limits, using loupe.

• 3) Pinches segment of coil to position and level coil, using tweezers.

• 4) Spins balance wheel to verify that all coils of spring are within same plane and concentric with collet when oscillating.

• 5) Adjusts coils to correct discrepancies, using tweezers.