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 7123-503B TYPE II QUARTZ MEN'S WATCH FOR PARTS & REPAIR & WATCHMAKER | eBay
Seiko 7123-823B Quartz | The Watch Bloke
Seiko 7123-823B Quartz | The Watch Bloke
Vintage Seiko Quartz 2623- 5020 Rare Watch Women's Dead Battery Black SQ | eBay
USED SEIKO 7123-503B TYPE II QUARTZ MEN'S WATCH FOR PARTS & REPAIR & WATCHMAKER | eBay