Zenith 40-250, Hour wheel, Ht: 1.55
Tax included.
- ZENITH original part in very good used condition.
- Heigth: 1.55 mm.
- Fits cal: 40, 40T
Data: Zenith cal: 40
- 17 jewels, manual wind, sub second.
- Size: 12''' 26.75 mm.
- H: = 3.80 mm.
- N: = 18.000 A/h.
- Power reserve: 45 h.
- Mainspring: 1.55 X 10.5 - 0.105 - 380
Versions:
- 40: 1955 - 1960, "screw" balance.
- 40T: 1958 - 1963, flat balance ring.