Casio G-Shock Frogman

Casio G-Shock Frogman Review: Expensive, But Worth It?

The Casio G-Shock Frogman boasts a bold, modern look, but you’ll be surprised to find that the company has been manufacturing the Frogman since 1993.

The watch’s design has been improved a handful of times since its initial launch almost three decades ago. However, its reputation remains largely the same – it’s known as one of the most reliable watches in the market to this day.

The Frogman was one of the first watches that was revealed to be a part of Casio’s Master of G series of watches. These watches were developed for hardcore users, specifically those who needed a professional-grade watch that can withstand the wear and tear of deep-sea dives and murky warzones.

So, if you’re someone who values durability and reliability over all else, it might be the perfect piece to get.

It’s also worth noting that the G-Shock Frogman series is highly collectible, and while the watch is designed with the needs of a pro-scuba-diver in mind, non-divers also buy the watch to show it off, and sometimes even just for the sake of collecting.

The acclaims given by customers may sound exciting, but only an unbiased review can truly give you a glimpse of the value the watch offers.

So, we went ahead and did an in-depth review of the GWF1000-1 for you.


The Frogman is over 50mm wide and has a body that’s 18mm thick. The shape of the watch is eye-catching. What makes it even more attractive is its asymmetric yet stunning build.

But as you know, the watch is made for those that need a professional-grade timepiece. To make it just as durable as it is attractive, Casio made the case, the bezel, and the crown of the watch from stainless steel.

The heavy-duty stainless steel components are further fortified by a Diamond-Like Coating (DLC), enhancing the material’s corrosion-resistant properties.

What makes the watch even more impressive is how other materials are utilized to make it more robust.

The Frogman boasts a scratch-resistant sapphire crystal that does not reflect light. It doesn’t break easily and also makes the watch a lot easier to read.

The carbon-fiber-reinforced strap will last you decades before showing signs of wear.

The G-Shock GWF1000-1 comes with a 100% digital display, which is split into two parts. On top of the watch, you will see the different phases of the moon, and the bottom of the watch will show you the time and day of the week.

It’s worth noting that these are only the default settings. Frogman watches, like most of Casio’s G-Shock watches, are highly customizable. However, you will need to learn the functions of its many buttons to personalize it to your liking.

Of course, besides helping you customize how the watch looks, the buttons will also help you access the other features that do not appear on the main display by default.

Here are a few highlights of the watch’s design: Casio Watch (Model: GWF-1000-1CR): Watches

Large Size

G-Shock watches are known for their large size, and the Frogman is no different. It has a diameter larger than 50mm and is also quite thick. However, the watch manages to remain lightweight at ≈140 grams. You’ll barely feel it on your wrist.

Unidirectional Bezel

The bezel of the Frogman makes it a lot easier for divers to keep track of time underwater. It rotates counter-clockwise, helping you ensure you reach the surface safely before running out of air.

Durable Caseback

Most of the body, including the caseback, is made from DLC-coated stainless steel. It features a logo of a robotic frog, giving it a cool look.

Robust Strap

One of the best things about the Frogman is its strap. The carbon-fiber strap is asymmetrical, complementing the look of the case. It boasts two-layers of neoprene, making it that much more durable.

You never have to worry about the watch slipping off when you’re underwater since the four Allen screws hold onto it tightly.

Sturdy Inner Container

The watch’s inner 3445 timing module is protected by a robust inner container enclosed with stainless steel.

Convenient Button Placement

The buttons on the right of the watch are large and easy to press. The size and placement makes them easy to press underwater. The buttons on the left side are recessed into the rubber guards, making them a little difficult to use underwater.


As the name indicates, the Frogman is built with the needs of scuba divers in mind. What makes it a watch worth buying is its ISO rating – it is rated water-resistant to 200 meters, making it apt for use by divers.

It also comes with two graphs, the Moon Graph and the Tide Graph, both of which are critical for divers. The graphs help to identify the right times to go underwater.

The graphs work hand-in-hand, and if you’ve never read the graphs before, understanding how to use the watch for this purpose can be challenging.

However, learning to use the graphs by referring to images and guides on the internet is easy. The watch is handy, and the graphs are accurate – another reason why the Frogman is so popular amongst divers.

Another feature of the G-Shock Frogman that divers and surfers love is that it is built to withstand saltwater. It is very corrosive, and most other watches corrode within weeks of contact with saltwater.

The mix of stainless steel, tough rubber, and crystal glass makes the Frogman resistant to corrosion.

But that’s not all – the Frogman has many other impressive features, including:

G-Shock Features

The Frogman is a G-Shock first, diver’s watch second. It comes with all the features that Casio watches are best known for: four alarms, a snooze alarm, hourly beeping, world time, stopwatch, timer, and also a battery power indicator.

It includes a power-saving function and a button-operated on/off switch, allowing you to manage the watch’s life better.


Not every watch comes with a full auto-calendar, making the Frogman that much more desirable. It is pre-programmable till 2099 and boasts an accuracy of +/- 15 seconds per month.

Three Sensors

The Frogman can measure atmospheric pressure, altitude, and temperature, making it a professional-grade watch equipped for all kinds of uses.

Solar Power

One of the best things about the Frogman is that you don’t need to replace the batteries or keep charging them. The watch can last for up to 10 months without exposure to sunlight and charge itself again on exposure. It’s the survivalist’s dream watch.

Auto Backlight

The Frogman, similar to Casio’s Rangeman, boasts an auto-backlighting feature that you can set up to trigger for 1.5 seconds or 3 seconds. Of course, you can also turn off the feature entirely if you don’t need it and converse power.

Moon and Tide Data

As mentioned earlier, the watch comes with a seven-segment tide graph, which, coupled with the moon phase, gives an accurate tide date. Setting it up with your UTC offset or lunitidal interval is easy, too.

Dive Mode

The Frogman’s Dive Mode is easy to activate – all you need to do is press the button on the bottom left and hold it for a few seconds. The watch will then give you access to a 200M WR dive timer, which can measure 24-hour dives and up to 48-hour intervals.

You can also access data of your previous 20 dives from the watch’s memory.

The Frogman also comes with a depth gauge and enables you to measure the temperature of the water. While we cannot recommend it as a substitute for a real dive gadget, it serves as an excellent back-up.

Pros & Cons

Every watch offers its own perks and disadvantages. Some of the most significant advantages that the G-Shock Frogman offers include:


  • Solar power charging – you’ll never need to replace the batteries
  • Big buttons make underwater use easy
  • Extra-large case perfect for wearing on top of scuba gear
  • One of the most durable watches money can buy
  • It comes with three sensors
  • Loaded with scuba-specific functions
  • Does not rust easily
  • Boasts easy to use software
  • ISO-rated water-resistant up to 200 meters
  • Top-notch LCD


One of the biggest complaints customers have for the G-Shock Frogman GWF1000-1 is the price. The watch is expensive, and if you don’t understand the Frogman’s legacy, it is easier to label the watch “overpriced.”

There’s a flip side to this con – the Frogman is valuable as a collectible, and limited-edition versions of it go for a lot higher than the original price in the second-hand market.

Another thing customers often complain about is the customizability. It may not seem like a disadvantage at first, but with over 100 different settings available, the Frogman does have a learning curve.


The Frogman is one of those watches that’s hard NOT to like. Regardless of if you’re a professional diver or a simple watch lover, you will love the Frogman.

The classic design, durable build, and the fact that it comes brimming with features give it a unique appeal.

It strikes the perfect balance between looks and features and boasts excellent value for money, especially considering collectors from around the world pay high prices for them.

The GWF1000-1 is one watch you will never regret buying.

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