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Seiko 4720-0040
The Seiko 4720-0040 features the following functions:
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4302 | Ordinary/None | Buy staff |
| 4047 | Ordinary/None | Buy staff |
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 |
|---|---|---|---|
| CANNON PINION | 6471/ELG | 156-666/ELG | Buy part |
| CENTER WHEEL/PINION | 6475/ELG | 281-666/ELG | Buy part |
| JEWEL, CENTER COCK SS UNSET | 6470/ELG | 73-667/ELG | Buy part |
| SCREW, TRAIN BDGE/SWP COCK | 6355/ELG | 199-667/ELG | Buy part |
| SET LEVER (DETENT) | 6371/ELG | 6371/ELG | Buy part |
| STAFF, 21/0S | 22BB/27A | 6382/ELG | Buy part |
| STEM | 6363/ELG | 6363/ELG | Buy part |
| THIRD WHEEL COMPLETE | 6479/ELG | 295A-666/ELG | Buy part |
| U/L HOLE CENTER JEWEL UNSET | 6469/ELG | 72-666/ELG | Buy part |
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