Casio G-Shock x AWR-M100 Series ft. Active Men Sports Round 200m Water Resistant Watch AWR-M100SAR-1A AWRM100SAR AWRM100 AWR-M100 AWR-M100SAR Conquer any environment with the Casio G-Shock AWR-M100 series, a rugged tactical timepiece engineered for ultimate durability and performance. Featuring a shock-resistant case and advanced Tough Solar technology, this watch harnesses light to ensure uninterrupted, battery-free operation. Module / Movement 5231 (Tough Solar aka solar powered) Power Reserve / Accuracy Approximately 8 months when fully charged (+/-15 seconds per month) Crystal Mineral crystal Light Full auto LED light (selectable illumination duration, afterglow) Case / Band Material Resin / aluminium case with resin band Water Resistance 200m / 20 bar Case Size Thickness: 14.9 mm Diameter: 46.4 mm Length: 52.0 mm Lug width: Integrated Other Specifications Casio G-Shock x AWR-M100 Series ft. Active Shock resistant World time (31 time zones, daylight saving on/off, home/world time city swapping) 1/100-second stopwatch (up to 60 minutes, elapsed time, split time) 1-second countdown timer (up to 100 minutes) 5 daily alarms Alarm countdown Hourly time signal Full auto-calendar (to year 2099) Button operation tone on/off Power saving (display goes blank to save power when left in the dark) Battery power indicator 12/24-hour format Hand shift feature (hands move out of the way to provide an unobstructed view of digital display contents) Regular timekeeping (analog-digital display)