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Seiko 5621A
Ligne: 11.5'''
Jewels: 25
Power Reserve: 44 hrs
Frequency: 21600 vph
Type: Automatic
Period used: ~1970
Diameter: 26 mm
Height: 5.55 mm
Hands: 1.50 x 0.90 x 0.21 mm
Base: Otero 794
The Seiko 5621A watch movement features an excenter winding mechanism and belongs to the Otero family of single calibers or small families. It is an automatic movement with a sweep second hand and a date function that can be set by changing the time between 20:30-24h. This movement was commonly used around 1970.
The Seiko 5621A features the following functions:
- Automatic Winding
- Date: set by changing 20:30-24h
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.100 x 9.5 mm | 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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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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