This genuine Bergeon hairspring holder has a glass top for standard balances. It is chromium plated with a center hole with the diameter of 3.5mm. It is great for holding those small hairsprings while you are repairing your watch.
- Bergeon 30105 Hairspring Tool
- Center hole has a diameter of 3.5mm
- Size 25 X 35 X 10mm
- Swiss Made