IWC 19''' cal: 57 H7
Tax included.
Movement serial number: 301 627 (aprox: 1902).
Data: IWC 19''' cal: 57 H7
- 15 Jewels, manual wind, pin set, open face calibre.
- Size: 19''' = 41,9 mm.
- H: = 7.0 mm.
- N: = 18.000 A/h, Cut bimetallic balance with breguet hairspring.
- Power reserve: 30 h.
- Mainspring: 1,80 x 17,5 - 0,21 - 520 mm.
Versions: 1890 - 1931
- 18''' 57 H7:
- 19''' 57 H6,5, H7