TISSOT 27-721, Balance, complete
TISSOT original Balance complete, sourced from an untouched, factory-original movement. Verified by a WOSTEP-Certified watchmaker.
- Balance staff total height: 3.28 mm, meticulously measured and verified.
- Pivot diameter on both sides: 0.080 mm.
Micro-Tested Geometry: Both upper and lower pivots have been physically measured using a high-precision ICA Feintaster (microcator). The pivots show absolute cencentricity and zero wear, registered at precisely 0.080 mm on both ends. The hairspring is centered and has no damages or marks, absolutely flat.
Fits cal
- 27, 27PC, 27PCSC, 27.1, 27.2, 27.3, 27.23, 27.53, 27.63, 27.7, 27T, 27.1T, 27.2T, 27.21T, 27.61T
Versions:
- 27: sub second. no shock protection.
- 27 PC: sub second, shock resist.
- 27 PC SC: sweep second, shock resist.
- 27-1: sub second, incabloc. (1949 - 1951).
- 27-2: sweep second. (1936 - 1938).
- 27-3: sub second, shock resist. (1940 - 1942).
- 27-23: sweep second, shock resist. (1940 - 1942).
- 27-53: chronograph 60 s Mediostat, shock resist. (1940 - 1942).
- 27-63: sub second, date hand, shock resist. (1944 - 1945).
- 27-7: sub second, super shock resist. (1948).
- 27-T: sub second. (1950 - 1952).
- 27-1T: sub second, incabloc. (1950 - 1952).
- 27-2T: sweep second. (1950 - 1952).
- 27-21T: sweep second, incabloc. (1950 - 1952).
- 27-61T: sub second, date hand, incabloc. (1950 - 1952).
- 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).