Zenith 71
Example movement: Zenith cal 71, number: 4 727 422, manufactured in aprox: 1957.
Technical data: Zenith cal: 71
- 20 jewels, automatic wind, sweep second, date.
- Size: 13.5''' 30.0 mm.
- H: = 6.10 mm.
- N: = 21.600 A/h.
- Power reserve: 35 h.
Versions:
- 133: 18.000 A/h.
- 133.8: 21.600 A/h.
- 71: 21.600 A/h, date.
