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Seiko 1F20-1B30
The Seiko 1F20-1B30 watch movement features a non-sweep seconds function.
The Seiko 1F20-1B30 features the following functions:
- Non-Sweep Seconds
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.080 x 260 x 7.5 mm | GR3203 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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