Watch Balance Regulating Key Wrench Repair Tool For ETA 3135 2130 3035 Movement

Description

1 Watch Balance Regulating Key Wrench Tool. Turn the key in the direction necessary for the correction. Hold the balance rim with tweezers. Fit the end of the key onto the nut. In the event of a tight nut, correct the misreading caused by the torsion at the end of the key.