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Seiko 7C21-0A20
The Seiko 7C21-0A20 watch movement features sweep seconds, an automatic winding mechanism, and a calendar function.
The Seiko 7C21-0A20 features the following functions:
- Automatic Winding
- Calendar
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5077 | Ordinary/None | Buy staff |
| 6010 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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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) | |
|---|---|---|---|
| See More |
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Parts Listing
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