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Seiko 2P21-0D20
The Seiko 2P21-0D20 features the following functions:
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 |
|---|---|---|---|
| MAINSPRING | (use MSN-417) | 2542/ELG .00725 | Buy part |
| MAINSPRING | (use MSN-417) | 2542/ELG .0075 | Buy part |
| MAINSPRING | MSN-415 | GR 6776-DBH | Buy part |
| MAINSPRING 17-4-21.25 SH | MSN-417 | GR 6787-SH | Buy part |
| MAINSPRING 17-5-21 DB | (use MSN-415) | 2542/ELG .0071 | Buy part |
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