How to visualize the word "CASIO" on your watch?
The procedure for us to see the word "Casio" and verify the authenticity of its module (we insist: at least in part) is very simple and well known: we will only have to keep pressing the lower right button for a few moments, that is, the only button that is solitary on the side (at the other end there are two), keeping it pressed for about four seconds we should see the word "Casio" formed by the digits on the display.
When the button is released, the clock returns to normal mode.
By the way, remember that when you press it you will also change the time format (if it is 24h it will be 12h, and vice versa), so to return to the format you had previously, you must press that lower right button again.