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From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new models based on the big case Tough Solar GAS-100-1A CASIO original molding process is used to produce deposition coated hour markers that combine with the metal bezels to create a look of elegance.



  • Tough Solar
  • Hand shift feature
  • Super illuminator (double) illuminates the face and digital display
  • Shock resistant
  • 200m water resistance
  • World time (31 time zones)
  • Countdown timer
  • 5 daily alarms
  • Power saving
  • Battery level indicator
  • Approx. battery operating time:
    8 months on rechargeable battery (operation period with normal use without exposure to light after charge)
    19 months on rechargeable battery (operation period when stored in total darkness with power save function on after full charge)
  • Case size: 55.1 x 52.5 x 16.7mm
  • Total weight: 76g

G-Shock GAS-100-1A Black/Silver

  • All purchases over $99 are shipped express from Sydney with Australia Post at no additional charge ($10 if under $99).

    Please note that we aim to dispatch orders within 24 hours, with the exception of sale periods, where this may take up to 48 hours. Estimated delivery times are to be used as a guide only.

    For more on shipping information, click here.

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