Vtg Casio Databank DBC 611 G Digital Watch Telememo Working Needs New Battery | eBay
DBC-600 (1985) made in Japan. Original keypad still intact. I have a high quality replacement keypad decal an eBay user made, but the dull white/grey colors he used are just nowhere near
ArtStation - casio DBC-610 Data bank digital watch
History of Casio DBC, DBX, and DBM Data Bank Calculator Watches | WatchUSeek Watch Forums
Casio EDB-610 Calculator Watch Module 2550 E Data Bank - Etsy Sweden