Carbon, Resin; Mineral GlassAnalog and DigitalWater resistant to 200 metresImportedStyle: GAB2100FC-7A Size Case: 48.5mm x 45.4mm x 11.9mm Features Shock Resistant Carbon Core Guard structure Tough Solar (Solar powered) Mobile link (Wireless linking using Bluetooth®) Apps: CASIO WATCHES Auto time adjustment Easy watch setting Approximately 300 world time cities Time & place Reminder Phone finder Neobrite World time: 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city World time city swapping 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes), 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes), 1 second (after 60 minutes) Measuring modes: Elapsed time, lap/split time Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments) 5 daily alarms Hourly time signal Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) Full auto-calendar (to year 2099) Button operation tone on/off Power Saving (display goes blank to save power when the watch is left in the dark) Battery level indicator Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge), 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Accuracy: ±15 seconds per month (with no mobile link function) Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) 12/24-hour format Date/month display swapping Day display (days of the week selectable in six languages) Analog timekeeping: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) Digital timekeeping: Hour, minute, second, pm, month, date, day