LONGINES 631 - 636 (ETA 2824 - 2836)
Data: Longines 633.1 (Base caliber: ETA 2824)
- 25 jewels, automatic wind, center second, hack feature.
- Size: 11,5''' 25,60 mm.
- H: = 4.60 mm.
- N: = 28.800 A/h.
- Power reserve: 40 h.
Versions, suffix 1 = 25 jewels, 2 = 17 jewels.
- 631: without second.
- 632: center second, hack feature.
- 633: center second, hack feature, date.
- 634: without second.
- 636: center second, hack feature, day, date.
