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Seiko 28503E
The Seiko 28503E watch movement features an adjustable stud holder, sweep seconds hand, and pin lever mechanism.
The Seiko 28503E features the following functions:
- Adjustable Stud Holder
- Pin lever
- 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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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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