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Seiko 5J21-0A30
The Seiko 5J21-0A30 watch movement is an automatic movement that incorporates Incaflex Shock Protection.
The Seiko 5J21-0A30 features the following functions:
- Automatic Winding
- Incaflex Shock Protection
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|
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 | 721/1009 | INCAFLEX | Buy part |
| MAINSPRING 1.45-.11-372 | MSS-WA49 | Buy part | |
| PALLET ARBOR 40X110X10 | 72S/93P | 714/AS 1430 | Buy part |
| ROLLER, 180X90X36 | 82S/43R | Buy part | |
| ROLLER, INCABLOC 180X90X36 | 82S/150R | Buy part | |
| STAFF | 100/1352 | Buy part | |
| STEM, FEMALE OA 8.87 | 360/222 | 404/ETA 2370 | Buy part |
| STEM, TAP 10 | 200/1024F | 401/ETA 2370 | Buy part |
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