Casio G-Shock GA-100-1A1


    Introducing a collection of new G-SHOCK models whose 35mm diameter faces and large cases give them a look of power and strength.

    Dial rings and raised hour markers create three-dimensional depth that gives the face plenty of character.

    The popular G-SHOCK three-dial face design incorporates one analog dial in the center, with digital dials on either side.

    These watches are designed and engineered to deliver outstanding shock resistance and water resistance, as well as anti-magnetism.

    Over-sized buttons come with a checkered anti-slip surface to make operations fast and sure.

    1/1000-second stopwatch, velocity indicator, World Time, 5 alarms and much more provides these models with unmatched function and performance.

      Security policy

    Secured with 256bit encryption

      Delivery policy

    Australia Wide Delivery

      Return policy

    See our returns policy for more info

    Shock-resistant construction protects against impact and vibration.


    Mineral Glass

    Magnetic Resistant

    Shock Resistant

    200-meter water resistance

    Case / bezel material: Resin

    Resin Band

    LED light

    Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow

    World time

    29 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city / World time city swapping

    1/1000-second stopwatch

    Measuring capacity: 99:59'59.999''

    Measuring modes: Elapsed time, lap time, split time

    Others: Speed (0 to 1998 units / hour), Distance input (0.0 to 99.9)

    Mach indicator (speed exceeding 1225 units / hour)

    Countdown timer

    Measuring unit: 1 second

    Countdown range: 24 hours

    Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

    Other: Auto-repeat

    5 daily alarms (with 1 snooze alarm)

    Hourly time signal

    Full auto-calendar (to year 2099)

    12/24-hour format

    Regular timekeeping

    Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed)

    Digital: Hour, minute, second, pm, month, date, day

    Accuracy: ±15 seconds per month

    Approx. battery life: 2 years on CR1220


    Size of case / Total weight

    Size of case: 55×51.2×16.9mm

    Total weight: 72g

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