
Alpina 273-401 (18.5'''), Winding stem, DCN: 1620*
- DCN no: 1620
- Thread: 1.50 mm.
- Fits cal: 273, 274, 277, 278 (18.5'''). Base caliber: Unitas: 31
- A: = 120
- B: = --
- C: = 180
- D: = 150
- F: = 514
Versions:
- 273: H: = 5.35 mm, Lép.
- 274: H: = 5.35 mm, Sav.
- 277: H: = 4.15 mm, Lép.
- 278: H: = 4.15 mm, Sav.