Eternal clock for all time. If a Swiss watch, Rolex, or other premium watch is an accessory, then this watch is a tool. They are not created for status, beauty or brutality. No. They are designed to tell the time, and they do it very well. They can be produced until the moment when the need for watches, in principle, disappears. They are almost impossible to kill. I saw a video where an almost identical F-105W watch (F-91W, instead of an electroluminescent LED backlight) was first filled with water, then frozen, then boiled, then thrown into the washer and they continued to work. Interesting Facts: There is a small u between the words WATER RESIST. If three buttons are pressed at the same time, all the values of the LCD display will light up. By holding the right button for a few seconds, the word "CASIo" will light up.