LONGINES 420, 428, 846, 847
Data: Longines cal: 420 (Record cal: 666).
- 17 jewels, manual wind, sub second.
- Size: 10.5''' 23.30 mm.
- H: = 2.50 mm.
- N: = 21.600 A/h.
- Power reserve: 40 h.
Version:
- 420: sub second.
- 428: no second.
- 846: micrometic regulator, sub second.
- 847: micrometic regulator, no second.
