Casio G-Shock Mudmaster GGB100 Want the toughest watch for your mountain and backcountry adventures? Look no further than Casio's latest Mudmaster timepiece.


Few watches, if any, can boast a more rugged build than Casio’s Mudmaster line, a set of timepieces aimed squarely at hikers, mountaineers, and ground-based military personnel. And in that small category, there’s nothing that is tougher than the new Casio G-Shock Mudmaster GGB100, the outfit’s newest adventure watch.

That’s right, there’s a new top-of-the-head G-Shock for adventurous land-lubbers, giving you an even more rugged option for all your outdoor exploits. Whether you’re going on an extended mountaineering expedition, overlanding with your modified beast of a truck, or moving permanently to the mountains to form your own doomsday cult, this just may be the one thing you want strapped to your wrist.


The Casio G-Shock Mudmaster GGB100 uses a carbon composite monocoque for its inner structure, rendering it so light and strong that it doesn’t need external guards to protect all the side buttons. Ditching the guards allow them to slim down the shape of the timepiece, making it look even more streamlined than previous Mudmaster models. It has a bezel that uses three layers of fine resin with carbon fiber inserts, providing additional protection to the inner structure, along with a two-piece back panel that puts a layer of carbon fiber over a layer of stainless steel. The result is a case that’s highly resistant to shock, mud, and dust, all while surviving immersion in depths up to 200 meters.

It combines both digital and analog time-telling, with the option to use the digital display to show other information. Overall, the dial doesn’t depart much from the Mudmaster’s familiar aesthetic, with large indicators and hands for the analog dial and a strip of digital display at the bottom. A spherical glass and mineral glass provide dual-layer protection for the dial, while dual LED lights make it easy to check the time even when you’re on the trail at night.


The Casio G-Shock Mudmaster GGB100 packs a digital compass, a depth meter, a barometer/altimeter, and thermometer, allowing it to get readings that will be useful to all your adventures on land, along with an accelerometer that you can use to count steps, in case you want to track just how much walking you had to do to get to that secluded spot with the waterfalls. Built-in Bluetooth allows you to pair it with your smartphone, so you can use it conjunction with the outfit’s G-Shock Connected app. Among the app’s functions include letting you mark where you’re going on a map and providing a location indicator, allowing the watch to show how far you are from the destination right on the digital panel, along with keeping track of all sensor readings from the watch, so it can show you detailed information on your trip.


Other features include the ability to show 38 time zones, usual digital watch functions (stopwatch, measuring modes, countdown), sunrise/sunset time display, a full auto calendar, and two years of operating life on a CR2025 battery. It comes in three colorways.

The Casio G-Shock Mudmaster GGB100 is available now, priced at $350.

Check It Out