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GW9400-1B in Black

$330

Color: Black

Size: 
One Size
U.S. Standard Shipping Arrives 10/13 - 10/19
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The iconic, crazy-durable G-Shock built for extreme environments, with triple sensor functionality and a solar powered battery

One thing mattered to Kikuo Ibe when he designed Casio’s G-Shock back in 1983: toughness. Everything we love about the iconic watch—the blocky shape, the encapsulating bezel, the serious water resistance—were all in service of that single goal. And sure, G-Shocks still hold their place at the pinnacle of horological durability, but they’re also stylish as hell. Unfussy, and utilitarian, it’s a watch that can handle anything you put it up against. The GW9400-1B is the latest addition to the Master of G series of purpose-built watches for use on the job in extreme environments. Water- and mud-resistance, a lightweight resin case, and a full suite of functionality make it one you can depend on no matter where you take it.


  • This battle-tested watch is trusted by adventure sports athletes, special forces personnel, and is even NASA space-flight certified
  • Film solar panel on the watch face collects power from the sun or fluorescent light to keep the battery charged
  • Triple sensor that can display altitude, barometric pressure and temperature, and compass direction
  • Record and recall up to 40 records of date/time, bearing, and barometric pressure/temperature
  • Can display sunrise and sunset times for a specific date at sea level
  • Offers resistance against electric shock, gravity, low temperatures, vibration, water, and impact
  • Super illuminator LED light lets you see clearly in low-light situations
  • 200 meter water resistance can handle showers, swims, and surf sessions
  • Includes calendar, alarm, and timer functions
  • Flashes with buzzer that sounds for alarms and time signals
  • Strap: Stainless steel
  • Case: Stainless steel with DLC case back
  • Lens: Mineral glass
Function Time, date, triple sensor, stop watch
Battery Life Approx. 10 mos without light
Battery Type Rechargeable solar
Watch Module 3410
Water Resistance 200 m
Illumination LED backlight (Super illuminator)
Stopwatch 1/100 second
Alerts Flash and buzzer for alarms and timers

Email us at [email protected] for sizing guidance or other questions.

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