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Seiko 3421-5210
The Seiko 3421-5210 is a mechanical watch movement that includes the following functions: sweep seconds and automatic winding.
The Seiko 3421-5210 features the following functions:
- Automatic Winding
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.090 x 260 x 8.0 mm | GR3627X | 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 |
|---|---|---|---|
| BALANCE COMPLETE, SHOCK | 721/960 | 721/960 | Buy part |
| MAINSPRING 1.40X.088X11 AUTO | MSS-WA75 | GR-3627-X | Buy part |
| MAINSPRING, 1.40 X .09 X 260 | 770/251 | GR 3627-HX | Buy part |
| PALLET ARBOR, FRICTION | 72S/73P | 72S/73P | Buy part |
| ROLLER 175X75X37 | 82S/31R (use 82S/34R) | 82S/31R | Buy part |
| ROLLER 175X80X36 | 82S/34R | 82S/34R | Buy part |
| STAFF, HSP 50 | 100/822 | 723/ROL 620 | Buy part |
| STEM, TAP 10 | 200/824F (use 401/263) | 200/824F | Buy part |
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