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 DB-520 Vintage LCD | Memo mode running on the upper di… | Flickr
Vintage Casio DB-520 DATA BANK-50 Module-675 Mens Watch from 1985 "JAPAN" | WatchCharts Marketplace
Vintage Casio DB-520 Data Bank World Time QW.675 JAPAN 1988 - Etsy