
Tissot 27B-1, Balance staff, no: 724
- TISSOT original part part, not in factory packaging.
- Fits cal: 27B-1, 27B-2, 27B-21, 27B-61, 27B-9 (with incabloc).
Data Tissot 27B-1
- 15 Jewels manual wind, sub second.
- Size: 12''' 26,50 mm.
- H: = 4.05 mm.
- N: = 18.000 A/h.
- Power reserve: 44 h.
Versions:
- 27B: sub second. (1950 - 1961).
- 27B-1: sub second, incabloc. (1950 - 1961).
- 27B-2: sweep second. (1950 - 1961).
- 27B-21: sweep second, incabloc. (1950 - 1961).
- 27B-61: sweep second, date hand, incabloc. (1950 - 1961).
- 27B-621: sweep second, date, incabloc. (1950 - 1961).
- 27B-9: no second, incabloc. (1950 - 1961).