Alpina 277-401 (18.5'''), Winding stem, DCN: 925*

• DCN no: 925

• Thread: 1.20 mm.
  

• Fits cal: 277, 278 (18.5'''). Base caliber: Unitas: 33

• A: = 89
• B: = --
• C: = 140
• D: = 120
• F: = 513

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.