CERTINA cal: 13.50 - 13.51
Technical data CERTINA 13.50
- 17 jewels, manual wind.
- Size: 6''' 13.5 mm.
- H: = 3.2 mm.
- N: = 21.600 A/h.
- Power reserve: 40 h.
- Mainspring: 1.20 x 5.0 - 0.06 mm.
Versions:
- 13-50: base caliber.
- 13-51: back winding.
Technical data CERTINA 13.50
Versions:
