Casio G-Shock x GA-2100 Series ft. Emergency Rescue Men Casual Sports Hexagon 200m Water Resistant Watch GA-B2100CY-1A GAB2100CY GAB2100 GA-B2100 GA-B2100CY Make a statement with a robust timepiece that boldly blends black and yellow, evoking the urgency of emergency rescues and the confidence of safety signs. Perfect for those who demand both style and substance, this rugged yet versatile design complements any occasion, from casual to professional. Battery Life / Accuracy Tough solar (7 months without exposure to light) (+/-15 seconds per month) Crystal Mineral crystal Light Double LED light (super illuminator, selectable illumination duration, afterglow) Case & Band Material Resin / carbon case with resin band Water Resistance 200m / 20 bar Case Size Thickness: 11.9 mm Diameter: 45.4 mm Length: 48.5 mm Other Specifications Casio G-Shock x GA-2100 Series ft. Emergency Rescue Shock resistant Carbon core guard structure Mobile link (wireless linking via Bluetooth) Auto time adjustment (approximately 300 world time cities) Easy watch setting (time & place) Reminder and phone finder World time (38 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 Power saving (display goes blank to save power when left in the dark) Battery level indicator Hand shift feature 12/24-hour format Date/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping (analog-digital display)