A classic Casio watch is back in some new finish options. The CA53 collection – better known as the Casio Calculator watch – now comes in a finish dedicated to the original Casio personal ...

The calculator watch market was relatively sleepy until 1980 when Casio decided to make them. The CFX-400 was a top-of-the-line scientific calculator that even did hex (photo: [Septagram] Public ...

Casio watches are great, though we are more into the calculator models. Someone out there loves their F-91W so much that they made a giant wall clock version.

Unfortunately, none of them were functional, so it’s nice to see Casio following up with a ring watch that actually works. For the 75th anniversary, maybe we’ll even get a tiny calculator ring ...