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Seiko B337-4020
The Seiko B337-4020 watch movement features a sweep seconds function, allowing for precise measurement of seconds. Additionally, it is equipped with Incaflex Shock Protection, which helps to safeguard the movement against potential damage caused by impact or sudden movements.
The Seiko B337-4020 features the following functions:
- Incaflex Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.080 x 240 x 7.0 mm | GR3202 | 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
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