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Seiko 4N20-5570
The Seiko 4N20-5570 features the following functions:
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 2947 | Ordinary/None | Buy staff |
| 5487 | 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) | |
|---|---|---|---|
| See More | |||
| See More | |||
| See More | |||
| See More |
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| JEWEL, INCA BALANCE 110X29X09 | 400/1357 | 711.09/INCA #18 | Buy part |
| JEWEL, INCA BALANCE 135X50X09 | 400/11 | 111.09/INCA#8 | Buy part |
| JEWEL, INCA LOWER CAP 100X13 | 400/1314 | 722.11/INCA #16 | Buy part |
| JEWEL, INCA UPPER CAP 120X27 | 400/7 | 121.11/INCA #5 | Buy part |
| SHOCK SPRING, UPPER INCABLOC | 400/4 | 170.03/INCA #1 | Buy part |
| SPRING, INCA L/SHOCK 152X114 | 400/1313 | 770.03/INCA #39 | Buy part |
| UNIT, SHOCK LOWER INCA | 400/1485 | 705.20.09/INCA | Buy part |
| UPPER UNIT | 100.12.275.9 | Buy part |
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