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Seiko 2B21-5000
The Seiko 2B21-5000 features the following functions:
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.80 x 0.110 x 300 x 9.0 mm | GR5275 | Manual | Buy mainspring |
| 1.75 x 0.110 x 300 x 9.0 mm | GR5155 | Manual | 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 |
|---|---|---|---|
| CIRCUIT SUPPORT | X/11364 | 04017.976001 | Buy part |
| JEWEL, UPPER BALANCE CAP | 311/291 | 313 | Buy part |
| MAINSPRING 1.80-.11-300 9 | MS-910K | GR 5275 | Buy part |
| PALLET ARBOR, S/S 40-100-10 | 72S/87P | 714/AS 1007 | Buy part |
| ROLLER 180X85X36 | 82S/42R | Buy part | |
| ROLLER, INCABLOC 180X85X36 | 82S/149R | Buy part | |
| SCREW, DIAL FEET | A/1823 | 776/AS 1361/270 | Buy part |
| STAFF, HSP .60 | 100/686A | Buy part | |
| STEM | 200/821F | Buy part |
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