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Seiko 2P21-0C90
The Seiko 2P21-0C90 features the following functions:
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.105 x 320 x 10.0 mm | GR2936X | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| CROWN, WHITE | 506-1231 | 8100-1684W | Buy part |
| CRYSTAL X- | 54-09040 | Buy part | |
| GASKET, CASEBACK | 393-2074 | Buy part | |
| MAINSPRING 1.20-.105-320 10 | MSS-WA33 | GR 2936-X | Buy part |
| STEM | 065-104 | 401/755 | Buy part |
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