Seiko Caliber 8S23The Seiko caliber 8S23 (aka 8S23A) is a solar powered quartz watch movement with a day/date. It has 2 jewels...Quartz 00
Seiko Caliber 8S21The Seiko caliber 8S21 (aka 8S21A) is a 3-hander, no-date solar powered quartz watch movement. It has 2 jewels and...Other 00
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