Casio G-Shock x GM-2100 Mini Series ft. Midnight Fog Men Women Casual Sports Hexagon 200m Water Resistant Watch GM-S2100MF-1A GMS2100MF GMS2100 GM-S2100 GM-S2100MF Indulge in a realm of mystery with luxurious timepieces boasting mesmerizing, sophisticated colors. Expertly crafted with ion-plated metal components and harmonious band-case color combinations, these watches evoke the enchanting ambiance of a foggy night, perfect for those who appreciate understated elegance. Battery Life / Accuracy Approximately 3 years (+/-15 seconds per month) Crystal Mineral crystal Light Double LED light (super illuminator, selectable illumination duration, afterglow) Case & Band Material Resin / stainless steel case with bio-based resin band Water Resistance 200m / 20 bar Case Size Thickness: 11.0 mm Diameter: 40.4 mm Length: 45.9 mm Other Specifications Casio G-Shock x GM-2100 Mini Series ft. Midnight Fog Shock resistant World time (31 time zones) 1/100-second stopwatch (elapsed time, split time) Countdown timer (24 hours) 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)