Keep track of the time with the Casio Men's G-Shock Solar Atomic Digital Sports Watch, which features a digital display with multiband atomic timekeeping for accurate time in 12- or 24-hour format. Constructed with a 48 mm, shock-resistant resin case, a resin bezel and strap and a mineral crystal, the stopwatch and countdown timer features let you easily keep track of elapsed time, while an EL backlight lets you tell time in low-light conditions. 200 m water resistance. Solar powered.