TISSOT cal: 27B - 27B.9

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).