Casio G-Shock Men's 55mm GAX100B-7A Watch - Black/White

A favourite choice among the world's top surfers and street sports athletes, this model provides the best of both analog and digital formats. It features large hour markers, hour hand, and minute hand contributing to easy reading, even while paddling or waiting for the next wave. Surfing-oriented functions include tide graph, moon data, and temperature measurement and is an ideal watch for summer sea activities.


  • Casio G-Shock watches
  • Model no.: GAX100B-7A
  • For men
  • Movement: Japanese quartz
  • Dial colour: Black/White
  • Band colour: Black
  • Case material: Resin (stainless steel back)
  • Band material: Resin
  • Band measurement (approx. mm):
    • Width: 22
    • Length including the face: 265
  • Case diameter (approx. mm, includes casing): 55
  • Case thickness (approx. mm): 15
  • Clasp type: Buckle
  • Water resistance: 200M / 20BAR
  • 5 daily alarms (with 1 snooze alarm)
  • World time:
    • 29 time zones (48 cities + coordinated universal time)
    • Daylight saving on/off
    • Home city / World time city swapping
  • LED light: Auto light switch, selectable illumination duration, afterglow
  • 1/100-second stopwatch
  • Full auto-calendar (to year 2099)
  • Shock and magnetic resistant
  • Mineral glass
  • Moon data (moon age of the specific date, moon phase graph)
  • Tide graph (tide level for specific date and time)
  • Countdown timer
  • Hourly time signal
  • 12/24-hour format
  • Button operation tone on/off
  • Thermometer:
    • Display range: –10 to 60°C (14 to 140°F)
    • Display unit: 0.1°C (0.2°F)
  • Regular timekeeping:
    • Analog: 2 hands (hour, minute), 1 dial (tide level)
    • Digital: Hour, minute, second, pm, month, date, day
  • Accuracy: ±15 seconds per month
  • Battery type: SR927W x 2
  • Battery life: 3 years
  • Original box: Yes - ready for gift giving!
  • Designed in: N/A
A Bit About The Brand / More Info

Casio has been crafting timeless designs for decades. Renowned for their combination of flair and versatility, Casio wrist watches are perfect for anyone who requires unique functionality to go.

Product Reviews


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24 May 2019

Beautiful watch!!

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08 April 2019

Great watch good price

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17 April 2018

Love this watch

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28 February 2018

Thanks team... awesome to have a solid work watch.

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19 January 2018

Very happy with the watch and delivery.

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