CASIO G-Shock GBM-2100-1AER

With a distinctive hexagonal case, this silver-grey sports watch is crafted for those who seek originality. The 44mm case, black resin band, and 200m diver’s water resistance are complemented by a mineral crystal, offering a seamless blend of modern aesthetics and enduring reliability.

With a nod to military precision, this hexagonal silver-grey watch features a 44mm case and a distinctive mouse grey dial. The black resin band, mineral crystal, and 200m diver’s water resistance reflect a commitment to durability and style, making it a steadfast ally for every mission.

Go sleek, sharp and bold with a G-SHOCK standard-bearer in a metal-clad octagonal take on the original iconic design.
Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way. The dial is treated with vapor deposition finish for a meticulously detailed metallic look that suits a classic metal G-SHOCK timepiece. Incremental variations in the detailed square dot texturing on the wristband take casual urethane materials up a notch.

Case size (L× W× H)
49.3 × 44.4 × 11.8 mm
Weight
72 g
Case and bezel material
Resin / Stainless steel
Band
Resin Band
Construction
Shock Resistant
Water resistance
200-meter water resistance
Power supply and battery life
Approx. battery life: 3 years on SR726W X 2
Exterior
Glass
Mineral Glass
Other
Neobrite
Watch Features
World time
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off
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, split time, 1st-2nd place times
Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour 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
Accuracy
Accuracy: ±15 seconds per month
Other features
12/24-hour format
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Regular timekeeping:
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date