Seiko 5Y23A Vintage watch Movement | WatchCharts Marketplace
Seiko Caliber 5Y23A Watch Movement
Vintage Seiko 5Y23A Quartz wrist watch movement with day/date and stem Japan | eBay
SEIKO QUARTZ 5Y23-8C4LR. Men's wristwatch. Japan, ca. 1990. Figaro Auctions
How to tell when your Seiko watch was made (Part 2)
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 5Y23A Stem Stuck in Date Selection position? - Quartz and Tuning Fork Battery Operated Watches - Watch Repair Talk