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Tissot 27B-21
Ligne: 18'''
Jewels: 10
Power Reserve: 37 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1925
Diameter: 40.7 mm
Height: 5.5 mm
Hands: 2.10 x 1.05 / 0.28 mm
The Tissot 27B-21 watch movement is an open face calibre with a cylinder escapement. It features an unusual crown mechanism with a rocker bar and a ratchet on the back side. Additionally, it has a completely functionless crown wheel. The movement includes the functions of stem winding and setting, as well as a sub second display. The Tissot 27B-21 movement was commonly used around 1925.
The Tissot 27B-21 features the following functions:
- Stem wind and set
- Sub Second
Balance Staff Listing
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Mainspring Listing
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Incabloc Part Listing
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
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