Casio G-Shock GA-B2100C-9A

Case size (length x width x thickness) 48.5 x 45.4 x 11.9 mm
Mass 52g
Case / Bezel Material Carbon / Resin
Band resin band
Impact resistant structure (shock resist)
Carbon core guard structure
Water resistant to 20 bar
Tough solar (solar charging system)
Mobile link function
Mobile link function (function interlocking by Bluetooth communication with compatible mobile phones)
App
Compatible with "CASIO WATCHES"
App linkage function
Automatic time adjustment
Easy clock setting
World time about 300 cities
Time & Place
reminder
Mobile phone search
Inorganic glass
others
Clock function
World time
Stopwatch
timer
5 time alarms / time signal
Double LED light: LED light for dial (super illuminator, afterglow function, with afterglow time switching (1.5 seconds / 3 seconds)), LED backlight for LCD (super illuminator, afterglow function, afterglow time switching (1.5 seconds)) / 3 seconds) included)
LED: white
calendar
Operation sound ON / OFF switching function
Power saving function saves power)
Battery display / warning
Drive time
Driving time without solar power generation from full charge
When using the function: Approximately 7 months
In power saving state: Approximately 18 months
accuracy
* If it does not work with a smartphone, it will operate with normal quartz accuracy (average monthly difference ± 15 seconds).
Other functions
Needle evacuation function (If the needle overlaps with the LCD display and is difficult to see, the needle can be temporarily retracted from above the LCD display).
12/24 hour system display switching
Date display (month / day display replacement)
Day of the week display (switching between 6 languages: English, West, French, German, Italian, and Russian)