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Return To ShopThe Seiko 4M21A is an 11½’’’ quartz movement, which was used during the period of 1985-1988. It features a quartz-controlled stepper motor and an analog display, showing central hours, minutes, and seconds. The watch movement also includes a quickset date function, with the date positioned at either 3:00 or 6:00. Additionally, it offers a stop seconds function and a sweep seconds hand.
The Seiko 4M21A features the following functions:
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