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Seiko 1F21-0H40
The Seiko 1F21-0H40 watch movement features a backwind function. It operates with a beat rate of 21,600 vibrations per hour (vph).
The Seiko 1F21-0H40 features the following functions:
- Reverse Winding
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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