Certina 854-1-770, Mainspring
Tax included.
- CERTINA original mainspring in factory sealed packaging.
- Fits cal: 854-1
Data: Certina cal: 919-1
- 25 jewels, center second, automatic wind, quickset date, hack feature.
- Size: 11,5''' 25.60 mm.
- H: = 5.25 mm.
- N: = 28.800 A/h.
- Power reserve: 45 h.
Versions:
- 853-1: manual wind.
- 854-1: manual wind, date.
- 919-1: base caliber, automatic wind, date.
- 920-1: automatic wind, day, date.