Microstella Regulating Tool for Rolex Balances

Micro-stella key used to adjust Rolex balance wheels. The tool fits the unique star head of the balance adjusting regulator. Screwing in gives faster rate, screwing out slower rate.

• Calibres 1530,1570, 2130, 3035, 3055, 3135, 3155 and similar
• Includes instructions
• Made in Korea