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Seiko 8121
The Seiko 8121 watch movement features a sweep seconds function, allowing for smooth and continuous second hand motion. It also incorporates Incabloc Shock Protection, providing enhanced durability and protection against external impacts.
The Seiko 8121 features the following functions:
- Incabloc Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5387 | Ordinary/None | Buy staff |
| 5387 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.080 x 240 x 7.0 mm | GR4445 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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