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Seiko 5J21-0A20
The Seiko 5J21-0A20 watch movement features shock protection, sweep seconds, and a beat rate of 21600 vph.
The Seiko 5J21-0A20 features the following functions:
- Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5306 | Ordinary/None | Buy staff |
| 5306 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.10 x 0.095 x 240 x 7.5 mm | GR2602 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More | |||
| See More |
Documents
Parts Listing
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