Casio International Edition Calculator Watch CA-53WF-3B for $149 for sale from a Seller on Chrono24
Casio G-Shock Data Bank CA-53WF-1B - 33mm in Resin - US
Amazon.com: Casio CA-53WF-3B Calculator Green Digital Mens Watch Original New Classic CA-53, 43.2×34.4×8.2mm (CA-53WF-3BDF) : Clothing, Shoes & Jewelry
Casio Data Bank Calculator CA-53WF-3B - YouTube
Casio CA53WF-1B Data Bank Calculator Black Digital Men's Watch - Walmart.com
Hands-On: Yes, You Can Still Buy A Casio Calculator Watch - Hodinkee