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Tissot 31-21
Ligne: 12.5'''
Jewels: 21
Frequency: 18000 vph
Type: Automatic
Period used: 1966-
Diameter: 28.2 mm
The Tissot 31-21 watch movement is an automatic movement with a sweep second hand and a date function. It was introduced around 1966 and shares similarities with the 5400, 5410, 5420, and 5470 movements, although the differences are not specified.
The Tissot 31-21 features the following functions:
- Automatic Winding
- Date
- Sweep second
Mainspring Listing
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Incabloc Part Listing
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KIF Part Listing
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