Casio G-Shock x GA-900 Series ft. Sound Wave Men Casual Sports Round 200m Water Resistant Watch GA-900SKL-2A GA900SKL GA900 GA-900 GA-900SKL Immerse yourself in the dynamic world of sound-inspired timekeeping, where rugged design meets street fashion sensibility. Experience the GA-900's sturdy oversized case, industrial design motif, and enhanced usability, all wrapped in a package that's both tough and stylish. Battery Life / Accuracy Approximately 7 years (+/-15 seconds per month) Crystal Mineral crystal Light LED light (super illuminator, selectable illumination duration, afterglow) Case & Band Material Resin case with resin band Water Resistance 200m / 20 bar Case Size Thickness: 16.9 mm Diameter: 49.5 mm Length: 52.8 mm Other Specifications Casio G-Shock x GA-900 Series ft. Sound Wave Shock resistant World time (31 time zones) 1/100-second stopwatch Countdown timer 5 daily alarms Hourly time signal Full auto-calendar (to year 2099) Button operation tone on/off 12/24-hour format Hand shift feature Regular timekeeping (analog-digital display)