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Seiko 7N22-8A20
Base: Venus 170
The Seiko 7N22-8A20 watch movement is equipped with a chronograph function, allowing for the measurement of elapsed time.
The Seiko 7N22-8A20 features the following functions:
- Chronograph Movement
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.80 x 0.110 x 380 x 10.5 mm | GR5278 | Manual | Buy mainspring |
| 1.80 x 0.100 x 300 x 9.0 mm | GR5253 | 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 |
|---|---|---|---|
| BALANCE COMPLETE | 721/710 | 721/710 | Buy part |
| MAINSPRING 1.80-.10-300 9 | MS-911P | GR 5263 | Buy part |
| PALLET ARBOR | 72S/107P | 714/VEN 170 | Buy part |
| ROLLER, 180X90X36 | 82S/43R | Buy part | |
| ROLLER, INCABLOC 180X90X36 | 82S/150R | Buy part | |
| STAFF, .90 HSP .60 | 100/687 | Buy part | |
| STAFF, INCA | 100/777 | Buy part | |
| STEM | 200/451F | Buy part | |
| STEM, FEMALE OA 6.70 | 360/122 | 360/VEN 170 | Buy part |
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