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Seiko 1F20-5B70
The Seiko 1F20-5B70 watch movement features an Offset Center Wheel, which provides stability and accuracy to the motion of the timekeeping mechanism. Additionally, it comes with a Sweep Seconds function, allowing for continuous and precise measurement of seconds.
The Seiko 1F20-5B70 features the following functions:
- Offset Center Wheel
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.110 x 320 x 9.5 mm | GR3284 | Manual | Buy mainspring |
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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