Certina 15.20-1142, Automatic bridge, upper
- CERTINA original part in factory sealed packaging.
- Fits cal: 15-20, 15.21
Versions:
- 15-20: 6.75''' 19.800 A/h.
- 15-21: 6.75''' 21.600 A/h.
- 17-211: 7.75''' 21.600 A/h, date.
- 17-221: 7.75''' 21.600 A/h, date, modified balance.
