Casio G-Shock x GW-B5600 Series ft. Evolution Men Casual Sports Rectangle 200m Water Resistant Watch GW-B5600-2D GWB5600 GW-B5600 Experience precise timekeeping globally with this iconic square-design watch, featuring Bluetooth connectivity, Multi-Band 6, and Tough Solar technology. Stay accurate with automatic time corrections and access practical features like high-brightness LED backlight and world time. Ideal for the modern globetrotter. Battery Life / Accuracy Tough solar (10 months without exposure to light) (+/-15 seconds per month) Crystal Mineral crystal Light LED backlight (super illuminator, full auto LED backlight, selectable illumination duration, afterglow) Case & Band Material Resin case with resin band Water Resistance 200m / 20 bar Case Size Thickness: 13.4 mm Diameter: 42.8 mm Length: 48.9 mm Other Specifications Casio G-Shock x GW-B5600 Series ft. Evolution Shock resistant Radio-controlled (multi band 6) Mobile link (wireless linking via Bluetooth®) 5 world time (39 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) Low battery alert 12/24-hour format Date/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping (digital display) Time calibration signal reception (up to 6 times a day)