Hands on with the Mudmaster G-SHOCK watch

Hands on with the Mudmaster G-SHOCK watch

HAVING worn a G-SHOCK ‘Classic’ watch for the past 10 years I was keen to try out one of G-SHOCK’s most up-to-date watches to see how they compare.

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Classic G-SHOCK on Dan’s left wrist getting plastered in mud

My current G-SHOCK has seen some serious action over those years; I have worn it for pretty much all of my adventures! One of its biggest tests of its durability was a Tough Mudder where it got absolutely caked in mud (see right). With this in mind, I opted to try out the ‘Mudmaster’, considered the ‘King’ in the G-SHOCK Land series. This particular model (GWG-1000GB-1AER) has an altimeter, a barometer, temperature gauge and a compass making it ideal for adventurous types. The words ‘MUD RESIST’ on the strap might sound like a gimmick, but it’s true as because the entire watch is sealed by gaskets and greases/gels to stop dust, mud and water from making its way in. It’s also shock and vibration resistant – and as you can see from the main picture above, completely waterproof too.

First impressions were just how much bigger and heavier the Mudmaster is than my old classic G-SHOCK. It’s taking me slightly longer to get used to the weight and size of this on my wrist.


The Mudmaster is larger yet it’s easier to read the time on the smaller Classic that has the larger LCD screen

I like the double clasp on the strap and a neat gold-metal sleeve (instead of a plastic one) for the excess strap to slide in to. I don’t like that the watch strap doesn’t lay flat when you take it off, so you have to leave this on its side curled up.

The main ‘mode’ button is on the bottom left and rotates a golden arrow in the screen to show which function you have activated. The bottom right button is marked as ALTI (short for altimeter) and the top right button says COMP (short for compass). I particularly like that the compass and altitude functions have their own dedicated buttons. Press the circular gold-coloured button below the number 6 and an LED lights up; the hands and numbers glow in the dark too.

The digital display at the bottom shows the date and day of the week by default and then you use the hands to tell the time. What I have found though, is that it’s much easier to glance at my old Classic and read the time instantly whereas on the Mudmaster it’s not as easy to see. It might sound like a small criticism but when you’re out running, cycling or swimming, it makes a difference when you rotate your wrist to quickly read the time.


With the light button pressed in daylight

The Mudmaster has many settings and data recall functions and so far I’ve not made the most of what’s on offer. To get a feel for just how much this can do check out the manual here. I’ve certainly enjoyed using the altimeter and seeing what the pressure and temperature is. The compass is fun too, but it’s recommended you use a real compass for navigating. The only real issue I have with this watch is that digital display is small, so it’s not super easy to see the altitude or pressure at a glance – and the minute hand covers the view when it’s at half-past. I’d also prefer to see dark LCD lettering on a lighter background.

The World Time function is nice and the golden dial has abbreviations of major cities around the world indicated so you can easily switch time zones with the click of a button.


Golden arrow points to WT (World Time) in this shot

There’s no question that the time is accurate as it uses Casio’s radio towers to update (and uses a GPS signal to get the local time when radio signal isn’t available). It also charges itself using solar power.

Is it worth the high price of £700? I’d say so. Based on just how long my Classic G-SHOCK has lasted, you’re looking at a long-term investment with the Mudmaster. It’s pretty much bulletproof, charges itself so you’ll never have battery issues and having the altimeter, barometer and compass are nice additions. I think if you’re a hiker/fell runner then you’ll probably use this watch mainly for the altimeter and for it’s ability to cope with mud/dirt/rain, but be mindful that there are other watches on the market that have clearer displays for showing the altitude at a lower price. But if, like me, you’re a G-SHOCK fan and want something that will take some serious knocks, can cope with getting muddy and dusty and wet, then you won’t go wrong with this.




  • 5 Daily Alarms – Independent daily alarms; hourly time signal
  • Barometer – A built-in pressure sensor measures barometric pressure, which is shown on the display., Measuring range: 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure change indicator (±10 hPa); barometric pressure tendency graph (past 20 hours g
  • Countdown Timer – Measuring Unit: 1 second , Countdown range: 60 minutes
  • Digital Compass – Measures and displays direction as one of 16 points Measuring range: 0 to 359° Measuring unit: 1°; 60 seconds continuous measurement; Hand indication of north; Bidirectional calibration
  • Low Temperature Resistant – -10 °C/ 14°F
  • Mud Resistant – Dirt and Mud Resistant construction keeps soil, debris and rubble from getting into the watch., Multiple gaskets are used on pipes that guide buttons from impact. Screw-In crown on the internal gasket further increases mud resistance.
  • Multi Band 6 Radio Controlled – A built-in radio signal receiver ensures that the exact time is displayed across Europe, The United States and Japan AND China.
  • Neobrite – A luminous coating on the hands and markers providing illumination in the dark
  • Sapphire Glass – Sapphire glass w/Anti-Glare coating
  • Solar Power – Tough Solar, high-capacity solar-charging system allows operation even when using power hungry functions
  • Stopwatch – 1/100 second; measuring capacity: 24 hours; measuring modes: elapsed time, split time, 1st and 2nd place times
  • Water Resistant – 200 Metre / 20 Bar, 20 Bar Water Resistant means that the watch is also suitable for swimming or snorkelling
  • World Time – 29 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping.
  • Shock Resistant – Shock Resistant construction protects against impact and vibration
  • Altimeter – Measuring range: -700 m to 10,000 m (-2,300 ft to 32,800 ft.); measuring unit: 1 m (5 ft.); manual memory measurements (up to 30 records, each including altitude, date, time); , auto log data (high/low altitudes, cumulative ascent and descent of particular treks); altitude change indicator (±100 m / ±1000 m); other: relative altitude readings (-3,000 m to 3,000 m); measuremen
  • Thermometer – Measuring range: -10°C to 60°C (14°F to 140°F); measuring unit: 0.1°C (0.2°F)
  • Auto LED Light – A Light-emmiting diode (LED) is used to illuminate the watch face. This happens when the watch face is tilted towards you., Full auto double LED backlight with afterglow, LED Light for face: Auto light switch, selectable illumination duration, afterglow, LED: White
  • Screw Lock Crown – Mud Resistance- Crown Sealing shuts out mud and dust, Warning Indicator: A red warning strip on screw is a visual reference of the crowns lock/release state, Gasket: A gasket between the crown and case maintains a good seal
  • Button operation – tone on/off and mute
  • Size of case – 59.5?×?56.1?×?18?mm
  • Band – Resin
  • Radio Wave Reception – Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) *5 times a day for the Chinese calibration signal Manual receive The latest signal reception results, Corrects the time signal automatically , ON/OFF
  • Gold ion plated case – Ion plating is a method of applying corrosion-resistant metal coatings, Extremely durable, wear resistant, surface finishing process. Results in a higher brightness to the surface, Ion plating contains titanium nitrade layer
  • Case / bezel material – Resin / Stainless steel
  • Triple Sensor – Alitmeter/Barometer,Thermometer, Compass
  • Continuous Operation – About 23 months with the power-saving function*4 ON after full charge *4 Display shuts off after a certain period in a dark location
  • Vibration Resistant – Resistant against vibration from heavy duty operations
  • Gold ion plated bezel – Ion plating is a method of applying corrosion-resistant metal coatings, Extremely durable, wear resistant, surface finishing process. Results in a higher brightness to the surface