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Seiko W921-4140
The Seiko W921-4140 watch movement features an adjustable stud holder for precise regulation of timekeeping. It is equipped with a sweep seconds function that provides a continuous sweeping motion of the seconds hand. The movement is built with 17 jewels, ensuring reduced friction and improved longevity.
The Seiko W921-4140 features the following functions:
- Adjustable Stud Holder
- 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 0.080 x 300 x 7.5 mm | GR3205 | 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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