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Seiko M422-501A
The Seiko M422-501A is an automatic watch movement equipped with a stop seconds function, day and date display, and sweep seconds.
The Seiko M422-501A features the following functions:
- Automatic Winding
- Day and Date Display
- Stop Seconds Function
- Sweep Seconds
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) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| CENTER WHEEL, OFFSET | 203/130 | *201/1/AS 1920 | Buy part |
| CLUTCH WHEEL | 407/901 | 407/AS 1896 | Buy part |
| DATE INDICATOR | A/7145 | 2557/1/AS 1920 | Buy part |
| OSCILLATING WEIGHT | A/7137 | 1143/1/AS 1920 | Buy part |
| PAWL WHEEL COMPLETE W/PINION | A/6394 | 1488/AS 1882 | Buy part |
| SET LEVER (W/SCREW) | 443/1358 | Buy part | |
| SET LEVER WITH AXLE | 443/1476 | 443/1/AS 5100 | Buy part |
| STEM | 200/1701F | 401/AS 1920 | Buy part |
| STEM, FEMALE OA 9.88 | 360/508 | 360/AS 1920 | Buy part |
| STEM, SPLIT MALE 9.0 O/A | 360/526 | Buy part | |
| WINDING PINION | 410/1247 | Buy part |
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