Square Metal Watch Hairspring Movement Balance Wheel Bracket(Copper)

1. Conveniently place the watch balance spring, watch movement parts and accessories can be used for calibration, inspection or repair work
2. Made of alloy material, the watch balance spring can effectively resist oxidation, not easy to rust, extend service life and be durable
3. Watch balance frame size: about 67 x 34 x 49 mm
4. Watch balance frame needle length: about 38 mm/1.5 inches
5. Hairspring base length: about 22 mm/0.9 inches