Zenith 120-401, Winding stem
- ZENITH original part, not in factory packaging.
- Fits cal: 120
- Thread: 0.90 mm.
Data: Zenith cal: 120
- 18 jewels, manual wind, center second.
- Size: 12''' 26,75 mm.
- H: = 4.65 mm.
- N: = 18.000 A/h.
- Power reserve: -- h.
- Mainspring: 1.55 X 11 - 0.105 - 430