
Longines 280-401, Winding stem
- LONGINES original stem, not in factory packaging.
- Thread: 0.90 mm.
- Fits cal: 280, 281, 284, 285
Versions:
- 280: Manual wind.
- 281: Manual wind, date.
- 284: Manual wind, exenter regulator.
- 285: Manual wind, exenter regulator, date.