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Seiko 7431-001K
The Seiko 7431-001K is an automatic watch movement that incorporates a day and date display, sweep seconds function, calendar, and operates at a beat rate of 21600 vph.
The Seiko 7431-001K features the following functions:
- Automatic Winding
- Calendar
- Day and Date Display
- Sweep Seconds
Balance Staff Listing
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Mainspring Listing
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Incabloc Part Listing
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KIF Part Listing
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Parts Listing
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