FREE Shipping on ALL Orders | FREE FAST SHIPPING ON MOST ORDERS $199.99 AND UP (Not for AirRifles)
0 Cart
Added to Cart
    You have items in your cart
    You have 1 item in your cart
    Check Out Continue Shopping

    From the MASTER OF G Series MUDMASTER, the watch that is designed and engineered to withstand rough land environments, come carbon resin models that incorporate a new type of structure. The case is made of high-rigidity carbon material to protect against damage and deformation due to impact and other rough treatment, while metal button pipes ensure a tighter seal against the external environment. A filter further protects against the invasion of mud, for the high level of dust and mud resistance required when in severe environments. In addition, the dual back cover consists of a stainless steel panel back and an outer cover made of shock resistant fine resin embedded with glass fibers. Quad Sensor capabilities use compact sensors that make it possible to pack compass, altitude/barometer, and temperature measurements, along with an accelerometer that keeps track of your step count, into a compact configuration. A special G-SHOCK app, which simplifies configuration of watch settings, also includes a new Mission Function.


    • Bluetooth Smart
    • Auto LED light
    • Mud-resistant case
    • Shock-resistant
    • Mineral Glass
    • Spherical Glass
    • Neobrite
    • Digital-compass
    • Thermometer
    • Altimeter
    • Steptracker
    • Carbon-reinforced resin casing
    • Carbon bezel
    • Resin band
    • Water resistance classification (20 bar)

    Mud-resistant structure 

    (dust and mud resistance)

    By using hard materials in the case, the design of the watch prevents damage and deformation from shocks and other sources, and achieves a high level of airtightness without the use of metal parts. In addition, the watch contains a filter that avoids the intrusion of dirt, allowing it to exhibit strong mud resistance in harsh environments.

    Carbon core guard structure

    A new shock-resistant carbon core guard structure integrates the case. An external structure capitalises on its toughness and lightness.

    Shock-resistant button

    The new carbon case helps to develop a new structure of button. This also enables removing the button guards from the exterior.

    Exterior using a dual-layered case back

    GG-B100 features a stainless-steel panel back that keeps the watch airtight, as well as a fine resin glass fibre case back that makes it tough against shocks. This design is inspired from the petrol tanks carried on offroad vehicles often used on rough roads.

    Casio GG-B100-1BCR Master of G Mudmaster Men's Watch Specifications

    • Size of case 55.4×53.1×19.3mm
    • Total weight 92g
    • Module 5594
    • LED White
    • Approx. battery life 2 years on CR2025
    • Case / Bezel material Carbon / Resin
    • Band Resin
    • Digital compass Yes
    • Step count Yes
    • Hour format 12/24