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Seiko 1221-5120
The Seiko 1221-5120 features the following functions:
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 2751 | Ordinary/None | Buy staff |
| 2751 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.100 x 360 x 10.5 mm | GR4125DBH | DBH | 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) |
|---|
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