100% ORIGINAL CASIO G-SHOCK GA-2100HC-2ADR / GA-2100HC-4ADR / GA-2100HC-2 / GA-2100HC-4 / GA-2100HC / GA-2100

Explore all the latest scenes, in colors that look great on hidden coastlines and city streets alike. Whether you’re feeling sporty, refined, or rugged, we have a Hidden Coast watch for you—ready to go wherever you do. The sporty versions feature both analog hands and a digital display, complemented by a translucent resin band. Their special translucent matte bezels showcase the watch’s internal components. For a more refined approach, try the look with finer lines, achieved by framing a carbon case with an octagonal sheath of translucent resin , echoed in a contrasting translucent resin band. Moving on to tougher terrain, the rugged models are made of all resin parts in matte colors that project a quiet strength. From street fashion to getting way out of town—one of these watches is sure to suit your style.

Case size (L× W× H)
48.5 × 45.4 × 11.8 mm
Weight
51 g
Case and bezel material
Carbon / Resin
Band
Resin Band
Construction
Shock Resistant
Carbon Core Guard structure
Water resistance
200-meter water resistance
Power supply and battery life
Approx. battery life: 3 years on SR726W X 2
Glass
Mineral Glass
Other
Neobrite
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