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Seiko 2E20-7639
The Seiko 2E20-7639 watch movement features Incabloc Shock Protection, Backwind, and a beat rate of 21600 vph.
The Seiko 2E20-7639 features the following functions:
- Incabloc Shock Protection
- Reverse Winding
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.060 x 160 x 5.0 mm | GR3170 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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