seiko quartz mens watch vintage movement 5Y23A | WatchCharts Marketplace
What year is this seiko?? | WatchUSeek Watch Forums
Watch Movement – Buy Watch Movement with free shipping on aliexpress
Anyone know a good replacement movement for a Seiko SQ Day Date 5Y23-8A11? The original movement (5Y23A) is long since discontinued. Thanks! : r/watchrepair
Seiko Caliber 5Y23A Watch Movement
SEIKO QUARTZ 5Y23-8C4LR. Men's wristwatch. Japan, ca. 1990. Figaro Auctions