Best G-Shock: Casio Gw9400 1CR Rangeman Black Solar Watch

(Last Updated On: 2016年6月12日)

[Abstract] I love to review new Casio G-Shock watches and today I’d like to share with you the excellent Casio G Shock Black Solar Watch GW9400 Rangeman. Clearly I don’t cover each new G-Shock model, but I make it a point to notice the best pieces from Casio that continue to offer more of what we love in what is arguably the world’s most useful collection of timepieces. the G-Shock is an item that has the remarkable ability to appeal to watch lovers of all ages, budgets, and tastes. Casio Rangeman maybe is the best G Shock Watch. Here is one of the best reviews of this watch. Hope to help you to create health technical sports life.


For several years Casio had been experimenting with the inclusion of this sensor technology into Casio G-Shock watches. In fact, the GW9400 Rangeman is a follow-up to the GW9300 Mudman, and the GW9200 Riseman before it. Those previous models contained some, but not all of the Triple Sensor technology. The Rangeman has them all, and in a satisfying way that allows them to live within the the durable G-Shock shell and still be easy to operate. In fact, the smaller size of the new module is probably what makes it possible for Casio to include the full ABC set of features into a G-Shock watch. In a nutshell, the version 3 module is smaller, uses less power, is faster, and is more precise than previous generation sensors.

Nevertheless there are improvements and additions. Did you know that the chronograph (stopwatch) now measures up to about 1000 hours? The watch also contains a sunrise/sunset feature that I love and frequently find useful. The watch uses your current timezone location along with your latitude (that you can set manually), as well as the current date to know the precise sunrise and sunset time where you are. You can also travel back and forward in time with the push of a button to know the sunrise/sunset times for future or past dates.

It is also worth noting that the Rangeman uses solar (any light for that matter) charging for the battery, and it has a six band atomic clock signal radio. That means no battery changes and updated accuracy. Great, another watch you don’t need to ever worry about. Even though I primarily wear mechanical watches I find myself often taking a Casio along with my on travels as a backup or reference clock.


You really can beat up a G-Shock – and they clean up well. I’ve taken the Rangeman into dust, mud, ocean water, into bright sunlight, all while being active. The pictures I took for this review are of the watch after all of that. Yes, the watch isn’t infallible. You are still talking about a watch made of metal and plastic, but compared to most other timepieces on the planet these can put up with a lot more abuse. Considered a higher-end G-Shock. the GW9400 uses a good amount of metal. The case back is completely in steel, as is the strap buckle and loop for the excess strap. What is also great is that the pushers (large and easy to push) are metal. They have a great looking texture to them and are a pleasure to operate.

At about 53.5mm wide, the Rangeman wears comfortably, especially because it is so light – being about 93 grams. It is also water resistant to 200 meters and obviously very shock-resistant (that is the cornerstone of “G-Shock’s religion”). Also, there is a rare character design on the back of the watch. Casio does this from time to time and I find it amusing when they give a watch the added character of a figurine “Rangeman” mascot. The rear of the watch has a sort of electric feline wearing what looks to be a compass. I don’t know how much sense it makes but I like it.


Is the watch easy to live with? Well I grew up wearing G-Shock watches most of my life so I’d say so – and the Rangeman is no different. The digital display offers a range of information and the home screen is very useful. The upper right section can display either the day of the week or a graph showing changes in barometric pressure, and you also have calendar information and the time at a glance. The dial even features a power reserve indicator for the battery, which is nice to know from a quick look. The upper left circular quadrant has Casio’s typical “pie-chart” seconds counter. Though this is also used as the compass needle in compass mode.


There is no need for me to discuss everything from the watch’s five daily alarms or countdown timer. I assume that most people reading this review have had some experience with G-Shock watches, so they generally know the core set of functionality that Casio has offered in them for decades. It is true that we tend to take all of these features for granted. Having said that, after wearing digital watches from many other brands, I have to say that going back to using a G-Shock is like returning to an old friend. Sure quirks exist, but overall these watches offer a straightforward and mostly logical set of features – which are best offered in Japanese digital versus analog watches.

Is this a good watch for a luxury watch lover? I am going to say yes. As a watch snob who looks down on most quartz timepieces I always admire a G-Shock. No I don’t wear one all the time, but for me these are a must for any collection. They are not only the ultimate beater watch, but they look cool. For me the design takes inspiration from Transformers as much as it does Batman. These are the epitome of modern watches and make a case for themselves in terms of price, design, and functionality.

The Rangeman GW9400 is the current best of breed (even though there are more expensive models out there) and it would be silly for us to do anything but recommend it for those who see a place for one in their lives. Best Seller in TOP 100 in wrist watch and TOP 1 in G-Shock watch.

Main features:

  • 10-meter free-fall endurance, 660 feet water resistance and a 10-year battery life
  • Shock Resistant
  • Triple Sensor (Altimeter/Barometer, Thermometer and Compass)
  • Tough Solar
  • Multi-Band 6 Atomic Timekeeping

Friend we’d recommend it to first: Anyone who wears a watch while doing outdoor activities and anyone wanting a youthful looking timepiece.

Best characteristic of watch: The best and most fully-featured G-Shock watch to-date. Great design on top of that. Best G Shock Watch.

Worst characteristic of watch: Not the smallest G-Shock model around, but overall there is really little to complain about given the G-Shock theme and price.

Buy it at

Comments from the buyer in
First off, great watch!
I did a ton of research, and searching forums and reviews about this watch before I bought it. Let me tell you, there are a ton of flat liars out there. I read so many forum posts and reviews that the person had obviously never even handled the watch.
I m a Harley technician by trade, and was interested in gshock durability. Yes I could get a protrek with the same functions for less, but I doubt they would survive.
Now for the watch itself.
It has a great weight to it, feels more like a watch than most gshocks. The metal buttons are easy to push and feel great. The led lume is plenty bright, and the display is intuitive. All the standard gshock features work great, if you set your longitude/latitude, everything is spot on except that the atomic portion won’t sync. So if that’s a deal breaker you have to deal with sunrise sunset being off up to 30min depending on your actual location vs. selected city code.
Now for the barometer/thermometer.
Ok first the thermometer in the watch is used for sensor operation, not really to take a temp reading. If you’re wearing the watch it reads skin temp. Not a big deal, I can tell if it’s hot or not. That being said I had to calibrate my temp, I left the watch alone for an hour on a counter with an accurate thermometer next to it. Then adjusted temp to match. Once that was done I calibrated the altimeter to my actual elevation using topographical info for my exact position. The barometer itself after those two adjustment were close to the local weather reading.
The barometer graph works well when you are stationary, or very gradually change altitude. Live 300′ higher than my shop, so there’s always a jump in the graph from home to work and work to home. The baro/alarm works great, again without major altitude changes. If you are hiking it works, I had it go off, looked around and thought it was acting up. Nope, two hours later it started to rain, then the alarm went off again, the baro shot back up. That indicates high winds in a storm, and boy did it storm. Ps. Atomic will not sync with baro alarm on.
Accurate, but effected by weather. I have a friend that’s Special forces airborne, he has always told me altimeters need to be adjusted to a known altitude before you use them. It’s no different for the watch. That said it has been accurate enough if my gps was toast, I could navigate a topo with it. It’s usually within 40-50 ft max so far without further calibration. I have a garmin 60csx and the altimeter usually matches within that range.
It’s a digital compass what more do you need. Metal and electronics mess with it, but mechanical compasses have the same affliction. Again, properly calibrated, with a good topo, I can navigate with this watch if I had to. Would i head out with just the watch, no! But I’m not stupid. I usually take an extra compass, and spare batteries for the gps as well as quality topo maps for the area I’m in. But if everything else quit, I could find my way with the Gshock Rangeman.
Are there better systems out there, yes. Sunnto makes a watch for navigation, but it’s not solar! Batteries tend to run out at the worst times. Garmin makes a wrist mount gps, but I have a hand held. I primarily use my rangeman as a watch, second as a barometer. You just have to know and understand the limitations of the features and learn how to properly make use of them. It’s a great looking watch and has taken a beating; it still performs for me every day.

(Some Text from ablogtowatch)

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