G-Shock Men's 200m G-Steel Bluetooth Solar - GBM-2100A-1A2DR

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)
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Mineral Glass
Neobrite
12/24-hour format
Date/month display swapping
Day display (days of the week selectable in six languages)
Mobile link (Wireless linking using Bluetooth®)
App connectivity feature
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Time & place
Reminder
Phone finder
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
Case and bezel material
Resin (Bio-based) / Stainless steel 
Bio-based resin band
200-meter water resistance
Power supply and battery life
Tough Solar (Solar powered)
Case size (L× W× H)
49.3 × 44.4 × 11.9 mm
Weight
72 g