Casio G-Shock GA-2100-2A2JF GA-2100-2A2 Quartz Resin 20ATM Watch
Case size (length x width x thickness)
48.5 × 45.4 × 11.8 mm
mass
51g
Case/bezel material
Carbon/Resin (biomass plastic)
band
Resin band (biomass plastic)
structure
Shock-resistant structure (shock resist)
Carbon core guard structure
Waterproof
20 ATM water resistant
Power supply/battery life
Battery life: about 3 years
glass
inorganic glass
Size that can be attached to the band
145-215mm
clock function
world time
World time: Time display in 48 cities around the world (31 time zones, with summer time setting function) + UTC (Coordinated Universal Time)
stopwatch
Stopwatch (1/100 second (less than 1 hour)/1 second (more than 1 hour), 24 hour meter, with split)
Timer (set unit: 1 second, maximum set: 24 hours, measured in 1 second increments)
5 time alarms/time signal
Double LED light: LED light for dial (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds)), LED backlight for LCD section (super illuminator, afterglow function, afterglow time switching (1.5 seconds) /3 seconds)
light color
LED: white
Fully automatic calendar
Operation sound ON/OFF switching function
Average monthly difference: ±15 seconds
Other functions
12/24 hour display switching