Helvetia 830, Click spring, no 430
Tax included.
- HELVETIA original part in very good used condition.
- Fits cal: 830, 837, 838, 844, 845
Data: Helvetia cal: 830
- 17/21 jewel, manual wind, sweep seconds.
- S: = 25.6 mm 11.5'''
- H: = 4.30 mm.
- N: = 18.000 A/h.
- Power reserve: 45 h.
Versions:
- 830: Manual wind
- 837: Automatic winding.
- 838: Automatic winding, new designed rotor locking.
- 844: New automatic mechanism, date.
- 845: New automatic mechanism.