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Seiko 5Y31-6020
The Seiko 5Y31-6020 is an automatic watch movement that includes a calendar function.
The Seiko 5Y31-6020 features the following functions:
- Automatic Winding
- Calendar
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 |
|---|---|---|---|
| CLUTCH LEVER | 0384615 | 435/859 | Buy part |
| CLUTCH WHEEL | 0282615 | 407/982 | Buy part |
| HOUR WHEEL, SS HT | 0271611 | 255/684 | Buy part |
| MINUTE WHEEL | 0261615 | 260/987 | Buy part |
| RATCHET WHEEL | 0285615 | 415/1157 | Buy part |
| SCREW, + CELL USE W/0027508 | 0022468 | 5125/396 | Buy part |
| SCREW, CENTER COCK | 0022351 | 5125/295 | Buy part |
| SCREW, DIAL SIDE | 0022761 | 5750/614 | Buy part |
| SCREW, PLATE | 0022271 | 5110/726 | Buy part |
| SCREW, RATCHET WHEEL | 0022372 | 5415/572 | Buy part |
| SCREW, STUD | 0022150 | 5738/12 | Buy part |
| SETTING SPRING | 0385615 | 440/907 | Buy part |
| STEM TAP 9 | 0354616 | 200/1725F | Buy part |
| WINDING PINION | 0283615 | 0283615 | Buy part |
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