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Seiko 3421-5290
The Seiko 3421-5290 features the following functions:
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.90 x 0.195 x 460 x 15.5 mm | GR5648T | T | 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 |
|---|---|---|---|
| MAINSPRING 1.90-.19-445 | MSN-317 | GR 5648-T | Buy part |
| STAFF, REGULAR | 100/513 | Buy part | |
| STEM | 200/560F | 401/LON 18/90AB | Buy part |
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