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Seiko 4N21-0530
The Seiko 4N21-0530 watch movement features an Adjustable Stud Holder, enabling precise regulation of timekeeping. It incorporates a Sweep Seconds hand, allowing for continuous measurement of seconds. The movement operates at a beat rate of 18000 vibrations per hour (vph), contributing to its accuracy. Additionally, it utilizes 17 Jewels, reducing friction and enhancing its overall efficiency.
The Seiko 4N21-0530 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 0.115 x 340 x 10.0 mm | GR3296 | 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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Parts Listing
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