Casio GR8900A-1 G-Shock Sport Watch Review

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Finding a good wristwatch is much easier said than done. Of course, there are many different kinds and styles, not to mention various price points.

The fact of the matter is that it is possible to get a nice watch, one that is durable and can be used for outdoor sports and activities, that won’t break down at the first sign of trouble, and still doesn’t cost a fortune.

You just have to find the right brand, which in this case is Casio. Today, we want to review a specific watch from the G-Shock lineup of Casio watches.

Casio GR8900A-1 G-Shock Sport Watch

The Casio GR8900A-1 G-Shock Sport Watch is one of the more affordable watches in the G-Shock lineup in the last few years.

Now, this might not be the fanciest or most feature-rich watch out there, but the features it does have are very reliable, not to mention that the watch itself is one of the toughest models available. The bottom line is that G-Shock watches are made to withstand some serious punishment.

Who is This Watch For?

The Casio GR8900A-1 G-Shock Sport Watch is designed for two kinds of people.

It is mainly made for people who need a really accurate and durable timekeeping piece for sports or outdoor-related activities, for people who need something that can take a few big bumps without breaking down.

Even if you are not into sports or being outdoors, this is still just a really good all-around watch that can withstand the test of time.

What’s Included?

When you purchase the Casio GR8900A-1 G-Shock Sport Watch, you get a black resin watch with a black resin wristband, with solar panels to keep the battery going for years.

Overview of Features

The Casio GR8900A-1 G-Shock Sport Watch has a few good features that are worth talking about, but that said, remember that as far as G-Shock watches go, this is one of the more basic models.

One of the features is how this watch is made out of super strong resin. The case is designed to be scratch-, impact-, and shock-resistant, so it should be able to take quite a few bumps without suffering any damage.

Moreover, the screen is also designed to be scratch-resistant and shatterproof, which is important if you plan on taking it outside a lot.

On that same note, the Casio GR8900A-1 G-Shock Sport Watch is also water resistant down to 200 meters (about 660 feet), which is quite impressive as well. Although this watch doesn’t come with a huge price tag, it is one of the more durable models that you can get your hands on.

Not only is the black resin wristband very durable, but quite comfortable as well, and of course, it can be adjusted for size.

Speaking of comfort, the Casio GR8900A-1 G-Shock Sport Watch is designed to be ergonomically friendly, and it’s not too clunky or heavy either, so it should be a joy to wear no matter what you are doing, sports related or otherwise.

One of the biggest features of the Casio GR8900A-1 G-Shock Sport Watch is that it is solar powered.

Yes, it does come with a battery, and without solar power, this battery would last for about 10 months, which on its own is already pretty good. However, thanks to the solar power feature, if you expose the watch to a lot of sunlight, the battery can very well last for nearly 3 years.

Not having to change the battery often is a big convenience factor.

Related read: How do Sport Watches Work

Tutorial: How to Use Casio GR8900A-1 G-Shock

The only thing that you really need to know about the Casio GR8900A-1 G-Shock Sport Watch is to extend its battery life, letting it sit in the sun as much as you can is the way to go about it. Setting the time is not hard, and can be done with a few clicks of the included buttons.

For instructions on your exact model, reading the owner’s manual is recommended.

Related read: How To Set a Casio G Shock Digital Watch


  • Lightweight and comfortable
  • High level of durability
  • Water resistant to 200 meters
  • Basic watch functions that you would expect it to have
  • World time feature
  • Great battery life + solar powered


Missing advanced features which other G-Shock watches come with


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If you are looking for a slightly more advanced G-Shock watch from Casio, something that comes with more features, such as an altimeter, a barometer, a thermometer, atomic timekeeping, and more, the G-Shock Rangeman GW-9400 might be a good option to consider.


While the Casio GR8900A-1 G-Shock Sport Watch is not the most advanced model from the G-Shock lineup, it’s still very durable, accurate, and comfortable to wear, all without costing you an arm and a leg.

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