Buren 380-401 (11.5'''), Winding stem, DCN: 2017a
- DCN no: 2017a
- Thread: 0.90 mm.
- Fits cal: 380, 381, 382 (11.5''').
- A: = 68
- B: = 94
- C: = 130
- D: = 90
- F: = 452
Versions:
- 380: flat plate, sub second.
- 381: bevelled plate, sub second.
- 382: calendar, sub second.
- 382: calendar, center second.
