OMEGA 440-1006, Winding stem
- OMEGA original stem, NOS without factory packaging.
- Fits cal: 440 Backwinder
Data: Omega 580
- 17 jewels, manual wind.
- Size: 13.5 mm.
- H: = 3.2 mm.
- N: = 21.600 A/h.
- Power reserve: 36 h.
Versions:
- 440: Winding on back.
- 580: Normal winding.
