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Seiko 5P39-5A90
The Seiko 5P39-5A90 watch movement incorporates a sweep seconds function, enabling the seconds hand to move continuously rather than tick. It utilizes a pin lever escapement, operating with a pin-shaped lever engaging the escape wheel for enhanced accuracy in timekeeping.
The Seiko 5P39-5A90 features the following functions:
- Pin lever
- 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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