Casio] Databank 150, found this for $2 : r/Watches
Vintage Casio Databank 30 FKT100 Mens Watch Modul 785 Analog Digital - Etsy
Amazon.com: Casio Multilingual Mens Databank Watch, with 13 Languages and 30 Page Databank, 50M Water Resistant, 5 Multi-Function Alarms, with Stopwatch, and Countdown Timer, Features Hourly Time Signals : Casio: Clothing, Shoes
Hands-On: Yes, You Can Still Buy A Casio Calculator Watch - Hodinkee
Casio DBC-611G-1 Data Bank Calculator Watch Gold 4971850946502 | eBay