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Certina 15-21
Ligne: 12.5'''
Jewels: 24
Power Reserve: 41 hrs
Frequency: 28800 vph
Type: Automatic
Period used: 1971-
Diameter: 28.4 mm
Height: 4.8 mm
Hands: 1.52 x 1.00 x 0.17 mm
The Certina 15-21 is an automatic watch movement that features jewel bearings for the barrel. Detailed differences between the 7200, 7210, and 7220 models are not known. The movement includes functions such as a sweep second hand, day, and a quickset date. The Certina 15-21 movement was used during the period from 1971 onwards.
The Certina 15-21 features the following functions:
- Automatic Winding
- Date: quickset
- Day: set by changing 19:50-0:20h
- Sweep second
Balance Staff Listing
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Mainspring Listing
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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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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