G-Shock Rangeman GW-9400 Review

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If you are a looking for a tough and rugged watch that can tell you the exact time down to the second, but also comes loaded with many other features, particularly outdoorsy features for adventurists, then you might want to check out Casio’s G-Shock watches, particularly the Rangeman GW-9400.

It might look like a regular watch, but the plethora of integrated features says otherwise.

G-Shock Rangeman GW-9400

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The G-Shock Rangeman GW-9400 is one of the leading models from the popular Casio brand. It’s a very reasonably priced digital watch, one that’s built for toughness, and can do so much more than just tell the time.

Generally speaking, watches with such a high level of quality can cost many times more than what the Rangeman comes in at, making this unit a total bargain.

Who is This Watch For?

The G-Shock Rangeman GW-9400 is designed for people who need a good wristwatch that keeps accurate time, as well as for people who need a watch that will withstand a lot of punishment.

As you will see from the features, this unit is made for people who are outside a lot, and this includes mountain climbers and scuba divers alike. Some might call it an outdoor watch or an adventure watch.

What’s Included?

When you purchase the G-Shock Rangeman GW-9400, you get a quartz movement, solar powered, and atomic timekeeping watch, with a soft and comfortable wristband, and the battery is included.

Overview of Features

Although the G-Shock Rangeman GW-9400 might look like a fairly basic wristwatch, it actually comes with a lot of useful features. There are a lot to cover, so we will try to be quick about it!

In terms of durability, as is the case with G-Shock watches, this model is up there with the best of them. G-Shock watches in general are designed as the strongman or the tank of the watch world.

You would be hard pressed to find a watch more rugged than this. It’s made with some of the most durable materials and is specially built to withstand hard shocks and heavy impacts. The screen is made to be scratch resistant.

The G-Shock Rangeman GW-9400 is more or less invulnerable to mud, dirt, and moisture. The case and the buttons are specially sealed to prevent dirt, mud, and other debris from getting to the interior.

On that same note, this watch is also 100% waterproof down to 200 meters below the surface of the water, or about 660 feet. This watch is so tough that it can also withstand extreme freezing temperatures.

Something else worth noting is that the G-Shock Rangeman GW-9400 has excellent battery life. On its own, the battery can last for around a year. However, the real kicker is how this watch is actually solar powered.

Therefore, if you expose it to plenty of light, the G-Shock Rangeman GW-9400 can last for years with a single battery, without you ever needing to replace it.

In terms of keeping accurate time, remember that this is a quartz watch, so that automatically makes it quite accurate.

However, what makes it more accurate than most other watches is how it features atomic time keeping; it can automatically connect to one of several atomic clocks around the world, which it will sync to, thus adjusting the time accurately to within a fraction of a second; you never have to manually set the time on the G-Shock Rangeman GW-9400.

When it comes to basic and advanced timekeeping functions, plus more, you better believe that the G-Shock Rangeman GW-9400 comes with all of them.

Of course, it tells the time, but it also features a countdown timer, a stopwatch, an alarm, and a calendar.

Moreover, for all of your outdoorsy people out there, you will pleased that this watch also comes with advanced features such as a digital compass, a barometer, an altimeter, a thermometer, sunset and sunrise information, and more.

Tutorial: How to Use G-Shock Rangeman GW-9400

Seeing as this is an atomic watch, there is really not much to know. It should set and keep the time on its own. If you need to adjust the time, this is easily done using the included buttons.

For exact information on how to set the, G-Shock Rangeman GW-9400 simply read the owner’s manual.


  • Superior durability
  • Waterproof
  • Atomic time keeping
  • Solar power + great battery life
  • Comfortable wristband + adjustable
  • Many features + great for adventuring outdoors


A bit bulky and heavy



If you want a good watch from Casio, also a G-Shock, but this model is a bit too bulky for you, a much smaller and lighter option would be the Casio Men’s G-Shock Quartz Watch, a model which also happens to come at a slightly lower price.


The G-Shock Rangeman GW-9400 from Casio makes for a perfect choice for people who need a rugged outdoor watch with plenty of features, one that doesn’t cost an unreasonable amount of money.

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