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Seiko 3M21-0A30
The Seiko 3M21-0A30 watch movement features a day and date display function, allowing for the simultaneous indication of the current day and date. Additionally, it includes a sweep seconds function, which enables the continuous sweeping motion of the seconds hand.
The Seiko 3M21-0A30 features the following functions:
- Day and Date Display
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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| 1.40 x 0.110 x 340 x 10.0 mm | GR3700 | Manual | Buy mainspring |
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
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