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Casio G-Shock GWG2000-1A1 MUDMASTER Triple Sensor Atomic Solar Black Watch


1 in stock


  • 30 day returns
  • Free shipping
  • Secure checkout
  • 6-month warranty

At A Glance

Take on the toughest terrain with the G-SHOCK MUDMASTER GWG2000-1A1, designed to handle the harshest, roughest on-land environments.

This shock-resistant watch is constructed to withstand all the mud and sand your adventures may bring, and it leverages our latest exterior technology to deliver a smaller profile with an even better fit.

This compact design is made possible by the forged carbon bezel, carbon core guard case structure, and mud-resist buttons combined with stainless steel pipes and silicone buffers. Finely powdered carbon fiber is kneaded into resin, then heat-pressed to mold a bezel that is more complex, yet even stronger than before.

Triple sensor measurements keep you updated with direction, altitude, barometric pressure, and temperature readings. Large Arabic numeral indexes, extra-thick arrow-shaped hands, double LED lights, and sapphire glass ensure high visibility. The band is textured in the style of heavy-duty no-slip rubber grips, and the buttons are knurled for easy operation. A MUDMASTER designed for practicality, durability, and power.


* Triple Sensor – Altitude/Barometer/Compass
* Mud Resistant
* Multi-Band 6 Atomic Timekeeping
* Tough Solar Powered
* Shock Resistant
* Super LED Dual Illuminator

Included with Purchase

* Casio G-Shock GWG2000-1A1
* Outer G-Shock Box
* Inner G-Shock Tin
* Instruction Module
* 1 Year Casio International Warranty Card


* Case / bezel material: Resin / Stainless steel
* Resin Band
* Neobrite
* Screw Lock Crown
* Carbon Core Guard structure
* Mud Resistant
* Shock Resistant
* Sapphire crystal with glare-resistant coating
* Gray ion plated bezel
* 200-meter water resistance
* Tough Solar (Solar powered)
* Double LED light
* LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
* LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
* Low-temperature resistant (?10°C/14°F)
* Time calibration signal 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
* Time Calibration Signals
* Station name: DCF77 (Mainflingen, Germany)
* Frequency: 77.5 kHz
* Station name: MSF (Anthorn, England)
* Frequency: 60.0 kHz
* Station name: WWVB (Fort Collins, United States)
* Frequency: 60.0 kHz
* Station name: JJY (Fukushima, Fukuoka/Saga, Japan)
* Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/ Saga)
* Station name: BPC (Shangqiu City, Henan Province, China)
* Frequency: 68.5 kHz
* The auto hand home position correction
* Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))
* 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
* Magnetic declination correction
* Altimeter
* Measuring range: -700 to 10,000 m ( -2,300 to 32,800 ft.)
* Measuring unit: 1 m (5 ft.)
* Hand indication of altitude differential
* Manual memory measurements (up to 30 records, each including altitude, date, time)
* Auto log data (High/low altitudes, cumulative ascent and descent)
* Others: Relative altitude readings (±100m /±1000m), Selectable measurement interval: 5 seconds or 2 minutes
* *1 second for first 3 minutes only
* *Changeover between meters (m) and feet (ft)
* Barometer
* Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
* Display unit: 1 hPa (0.05 inHg)
* Hand indication of pressure differential
* Atmospheric pressure tendency graph
* Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
* *Changeover between hPa and inHg
* Thermometer
* Display range: -10 to 60°C (14 to 140°F)
* Display unit: 0.1°C (0.2°F)
* *Changeover between Celsius (°C) and Fahrenheit (°F)
* World time
* 29 time zones (29 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
* 1/100-second stopwatch
* Measuring capacity: 23:59’59.99”
* Measuring modes: Elapsed time, split time, 1st-2nd place times
* Countdown timer
* Measuring unit: 1 minute
* Countdown range: 60 minutes
* Countdown start time setting range: 1 second to 60 minutes (1-minute increments)
* 5 daily alarms
* Hourly time signal
* Battery level indicator
* Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
* Full auto-calendar (to year 2099)
* 12/24-hour format
* Button operation tone on/off
* Regular timekeeping
* Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
* Digital: Hour, minute, second, am/pm, month, date, day
* Accuracy: ±15 seconds per month (with no signal calibration)
* Approx. battery operating time:
* 6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
* 25 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
* Size of case : 61.2×54.4×16.1mm
* Total weight : 106g

Shock Resistant

Stable solar power

Keeps yourself in time

20 bar water resistant

Shock Resistant

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