Casio G-Shock [GBM-2100-1ADR]

Case size (L× W× H): 49.3 × 44.4 × 11.9 mm
Weight: 72 g
Case and bezel material: Resin (Bio-based) / Stainless steel
Band: Bio-based resin band
Construction: Shock Resistant
Water resistance: 200-meter water resistance
Power supply and battery life: Tough Solar (Solar powered)
Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®)
Apps: CASIO WATCHES
App connectivity feature: Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Time & place, Reminder, Phone finder
Glass: Mineral Glass
Compatible band size: 145 to 215 mm
Other: Neobrite
World time: 38 time zones (38 cities + coordinated universal time), auto summer time (DST) switching, home city/world time city swapping
Stopwatch: 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
Timer: 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)
Alarm/hourly time signal: 5 daily alarms, Hourly time signal
Light: 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)
Light color: LED:White
Calendar: Full auto-calendar (to year 2099)
Mute feature: Button operation tone on/off
Energy saving feature: Power Saving (display goes blank to save power when the watch is left in the dark)
Battery display/alert: Battery level indicator
Run time: 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)
Other features: 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)
Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode), Digital: Hour, minute, second, pm, month, date, day