Which Watch Today...: Casio Data Bank Telememo 50 - DB-520
Casio DB-520 from 1985 rescued from street seller for 1.8 USD. : r/casio
Vintage Casio DB-520 Data Bank World Time QW.675 JAPAN 1988 - Etsy
Vintage Casio DB-520 DATA BANK-50 Module-675 Mens Watch from 1985 "JAPAN" | WatchCharts Marketplace
Fatih Arslan on X: "This is the Casio DB-520. Made in 1985, almost 38 years old. I just changed the battery and it stills work. This has a special place in my
Casio Databank 50 World Time Quartz Japan DB-520 FOR PARTS/REPAIR/WATCHMAKER #. | eBay
Possibly my favourite Casio, for some reason: the venerable DB-520 : r/casio