Casio GW series

Casio GW series

It started with a basic model, the GWA 5600.
Many Casios have been added thereafter, as long as it has at least solar. Radio control is a nice tool, you no longer have to worry about the watch, it always works. The automatic EL back light is a nice tool in the dark. With the rotation of the wrist, the lighting automatically turns on for a few seconds.
As an example from my collection. The tire which has a combination of resin and steel is very comfortable.