Tissot 27B.621

Data: Tissot 27B.621

• 16 Jewels manual wind, sweep second, date.
• Size: 12''' 26,50 mm.
• H: = 5,70 mm.
• N: = 18000.
• 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).