Specifications Case / bezel material: Titanium One-touch 3-fold Clasp Titanium Band Solid Band Sapphire crystal with glare-resistant coating Shock Resistant Screw Lock Back Black ion plated bezel Diamond Like Coating 200-meter water resistance Tough Solar (Solar powered) LED backlight (Super illuminator) Time calibration signal reception Time Calibration Signals Mobile link (Wireless linking using Bluetooth) 5 World time 1/100-second stopwatch Countdown timer 5 daily alarms (with 1 snooze alarm) Hourly time signal Low battery alert Power Saving (display goes blank to save power when the watch is left in the dark) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Date/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: 15 seconds per month (with no signal calibration and mobile link function) Approx. battery operating time: Size of case : 49.343.213mm