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Seiko 5420A
The Seiko 5420A watch movement features an Offset Center Wheel, which aids in improved precision and efficiency. It is an Automatic movement, allowing for self-winding functionality. Additionally, it includes a Sweep Seconds function for accurate timekeeping.
The Seiko 5420A features the following functions:
- Automatic Winding
- Offset Center Wheel
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.110 x 380 x 11.5 mm | GR3702X | Auto | 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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Parts Listing
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