The Casio G-Shock Master of G GWG-1000-1A3ER 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 Casio, and it can be used as an alarm and stopwatch, as well. The altimeter measures your altitude, and thanks to the barometer and thermometer, you can always keep an eye on the weather. The LED light in the display ensures that you can effortlessly view this information in the dark, as well.