G-SHOCK

GGB100XM-1A

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$829.00
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For the fearless adventurer, a tough and rugged Master of G MUDMASTER featuring a strong, durable metal bezel.

The watches of the G-SHOCK Master of G line, developed for professionals working in the harshest environments, come equipped with even tougher functionality. And the MUDMASTER takes this another step further with the ability to handle the roughest rubble and debris-strewn terrains, earning the appreciation and trust of rangers and rescue teams operating in extreme environments.

The GG-B100XM-1ADR features a silvery stainless-steel bezel with a honing finish, delivering outstanding scratch resistance that protects against mud and dust and a subtle matte texture that minimises reflected light. The stainless-steel GG-B100XMB-1ADR bezel is ion-plated in black with a mirror finish for both outstanding scratch resistance and a refined lustre.

These MUDMASTER employ high rigidity carbon for the carbon fibre-reinforced case to keep damage and warping at bay and ensure a tight seal and excellent shock resistance. Featuring a filter to protect against mud, a stainless-steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibres, these timepieces provide a high level of resistance to dust and mud. Key components for the case and band are made with bio-based resin. Produced using renewable organic resources, this material is expected to help reduce environmental impact.

Practical and functional, the watches are equipped with digital compass, altimeter/barometer, and thermometer, as well as step counter. Easily correct the time using the dedicated app and tap into loads of other useful features including the Mission Log, which automatically records altitude data obtained from the watch and route data obtained by your smartphone.

You can depend on these tough timepieces to deliver what you need to make quick decisions and take decisive action.

2 year warranty

Mudmaster

Basic Information
  • Band
    Bio-based resin band
  • Case and bezel material
    Bio-based Carbon / Stainless steel
  • Case size (L × W × H)
    55.4 × 51.3 × 19.4 mm
  • Construction
    Shock Resistant, Mud Resistant, Carbon Core Guard structure
  • Power supply and battery life
    Approx. battery life: 2 years on CR2025
  • Sensor feature
    Step count using a 3-axis acceleration sensor: 0 to 999,999 step count display range Power Saving: Auto sensor sleep state entry after fixed period of non-activity
  • Time adjustment
    Bluetooth: Connects to a smartphone and automatically adjusts the time
  • Water resistance
    200-metre water resistance
  • Weight
    104 g

Exterior
  • Compatible band size
    145～215mm
  • Glass
    Mineral Glass, Spherical Glass
  • Other
    Neobrite

Smartphone Link / App Connectivity Features
  • App connectivity feature
    Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Life log data, Mission log, Location Indicator, Location Memory, Mode/Display switching customization, Auto altitude correction, Phone finder
  • Apps
    CASIO WATCHES
  • Smartphone link feature
    Mobile link (Wireless linking using Bluetooth®)

Features
  • Accuracy
    Accuracy: ±15 seconds per month (with no mobile link function)
  • Alarm / hourly time signal
    5 daily alarms
    Hourly time signal
  • Calendar
    Full auto-calendar (to year 2099)
  • Light
    Double LED light
    LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
    LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
  • Mute feature
    Button operation tone on/off
  • Other features
    12/24-hour format
    Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
    Regular timekeeping:
    Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
    Digital: Hour, minute, second, am/pm, month, date, day
  • Stopwatch
    1/100-second stopwatch
    00'00''00~59'59''99 (for the first 60 minutes)
    1:00'00~23:59'59 (after 60 minutes)
    Measuring unit:
    1/100 second (for the first 60 minutes)
    1 second (after 60 minutes)
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Sunrise / sunset display
    Sunrise, sunset time display
    Sunrise time and sunset time for specific date
  • Timer
    Countdown timer
    Measuring unit: 1 second
    Countdown range: 24 hours
    Countdown start time setting range: 1 second to 24 hours (1-minute increments and 1-hour increments)
  • World time
    World time
    38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
User Manual – Module 5744

Stainless steel bezel: Refined craftsmanship highlighting the aesthetics of practical elegance

As a defining element of the toughness-oriented design, the bezel conveys a strong presence. Made with stainless steel, its complex form of multiple surfaces and contours is shaped through forging. The top surface, beveled edges, and sides are each finished with different polishing techniques.

The GG-B100XM employs a silver-coloured bezel with a honed matte finish that enhances resistance to mud and dust while reducing light reflection, giving it a calm, subdued texture. The GG-B100XMB features a black ion-plated bezel with mirror polishing, combining high scratch resistance with a refined metallic sheen.

Shock-, dust-, and mud-resistant structure delivered by carbon fibre-reinforced resin

Offering high strength and excellent weather resistance, the carbon fiber-reinforced resin case protects the module. Gaskets are applied around the buttons to ensure a tight seal, providing reliable dust and mud resistance even in harsh environments. Carbon fibre-reinforced resin is also used for the cover enclosing the case back and for the movable parts on the underside of the band, enhancing both durability and wearing comfort.

* Image shows the GG-B100XM-1A.

Quad Sensor supporting land missions

In addition to the triple sensor that measures compass bearing, altitude/barometric pressure, and temperature, the watch is equipped with an accelerometer for step counting. By collecting diverse data, the Quad Sensor makes it easy to monitor environmental changes and track activity history, helping ensure reliable performance in land missions under the toughest conditions.

* Image shows the GG-B100XM-1A.

Bio-based resin

Key resin components used in the case, band and case back are made with bio-based resin.

* Image is included for illustrative purposes.

Smartphone Link

The watch connects to a smartphone via Bluetooth® to automatically adjust the time. Using the dedicated app, various watch settings and mission logs can be managed with ease.

Super Illuminator

High-brightness auto double LED light improves watch readability in the dark.

Feature List

  • Black icon of a watch hitting a flat surface with motion lines indicating a shock or impact.

    Shock resistant

  • Black icon of a person snorkeling with the number 20, representing a 20-bar pressure rating for water resistance.

    20 bar water resistant

  • Minimalist black icon of a person walking next to a simple clock face, representing punctuality or time management.

    Keeps yourself in time

  • Black and white icon of a smartphone syncing time with an analog wristwatch via a wireless connection.

    Easy to operate via smartphone

  • Black silhouette icon of a rubber boot splashing into a puddle of mud or water on a white background.

    Resistant to mud

  • Minimalist black icon featuring a jagged mountain silhouette below a simple line graph on a white background.

    Lets you know the barometric pressure and altitude

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