The Casio GWG-100-1A3ER is a shockproof men's watch that works on light energy. In addition to the time, the watch also displays the 24-hour indication, the day of the week, and the date. You can set up to 29 different time zones on the watch, and you can use it as an alarm and stopwatch too. Thanks to the shockproof design, the watch is resistant to shocks and vibrations. The LED light in the display ensures that you can also effortlessly view this information in the dark.