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Seiko 8420-7090
The Seiko 8420-7090 is a mechanical watch movement that incorporates the following functions: it does not have a second hand, it features a day and date display, and its beat rate is 21,600 vibrations per hour (vph).
The Seiko 8420-7090 features the following functions:
- Day and Date Display
- Without Second Hand
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.080 x 240 x 7.0 mm | GR2870 | 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) |
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Documents
Parts Listing
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