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Seiko 8420-004A
The Seiko 8420-004A watch movement is equipped with a pin lever escapement system, which aids in accurate timekeeping. Additionally, it features a calendar function that displays the date. The movement operates at a beat rate of 18000 vph, ensuring precise timekeeping.
The Seiko 8420-004A features the following functions:
- Calendar
- Pin lever
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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