How To change replace seiko watch battery | Watch Repair Channel - YouTube
7123-823F] My dad gave me my first Seiko when I was 18. It's an 80s Sports 100 he used diving. After all these years it's still ticking away with the occasional battery
USED SEIKO 7123-8510 SQ QUARTZ MEN'S WATCH FOR PARTS & REPAIR & WATCHMAKERS | eBay
Seiko 7123 Movement Details –– Mizeni
Vintage SEIKO QUARTZ TYPE II 7123 FOR PARTS OR REPAIR WATCH JAPAN 2 | eBay
TIME CAPSULE: Soviet vintage watch Luch with quartz movement – new old stock(NOS)! – SovietWatchStore.com