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Casio G-Shock Mudmaster GGB100X-1A9 front view, featuring the large 55.4mm black Carbon Core Guard carbon fibre-reinforced resin case with triple-layered carbon fibre bezel, bold orange band and accent details, analogue-digital dial with inverted LCD display, quad sensor layout, and G-Shock Mudmaster branding.Casio G-Shock GGB100X-1A9 front view showcasing the 55.4mm x 51.3mm black carbon fibre bezel and case with striking orange band contrast, triple-layer carbon fibre bezel designed to resemble a portable gasoline can, analogue hands, and inverted LCD digital display — the 2026 updated Mudmaster in black and orange.Casio G-Shock Mudmaster GGB100X-1A9 watch rear view showing the dual back cover construction — stainless steel panel back with glass fibre-reinforced fine resin outer cover — with G-Shock Mudmaster branding confirming Carbon Core Guard shock, dust, and mud-resistant construction and 200-metre water resistance.Casio G-Shock Mudmaster GGB100X-1A9 close-up of the orange bio-based resin band with mud-resist filter construction, ventilated lug design, and standard buckle clasp — the bold orange colourway that distinguishes the 1A9 variant from the rest of the GGB100X lineup, fitting wrists from 145mm to 215mm.
Casio G-Shock Mudmaster GGB100X-1A9 front view, featuring the large 55.4mm black Carbon Core Guard carbon fibre-reinforced resin case with triple-layered carbon fibre bezel, bold orange band and accent details, analogue-digital dial with inverted LCD display, quad sensor layout, and G-Shock Mudmaster branding.
Casio G-Shock GGB100X-1A9 front view showcasing the 55.4mm x 51.3mm black carbon fibre bezel and case with striking orange band contrast, triple-layer carbon fibre bezel designed to resemble a portable gasoline can, analogue hands, and inverted LCD digital display — the 2026 updated Mudmaster in black and orange.
Casio G-Shock Mudmaster GGB100X-1A9 watch rear view showing the dual back cover construction — stainless steel panel back with glass fibre-reinforced fine resin outer cover — with G-Shock Mudmaster branding confirming Carbon Core Guard shock, dust, and mud-resistant construction and 200-metre water resistance.
Casio G-Shock Mudmaster GGB100X-1A9 close-up of the orange bio-based resin band with mud-resist filter construction, ventilated lug design, and standard buckle clasp — the bold orange colourway that distinguishes the 1A9 variant from the rest of the GGB100X lineup, fitting wrists from 145mm to 215mm.

Casio G-SHOCK Analogue Digital Men's Watch GGB100X-1A9


Regular price $799.00 $799.00


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SKU : 1NGB1X01

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Casio G-Shock Mudmaster GGB100X-1A9 front view, featuring the large 55.4mm black Carbon Core Guard carbon fibre-reinforced resin case with triple-layered carbon fibre bezel, bold orange band and accent details, analogue-digital dial with inverted LCD display, quad sensor layout, and G-Shock Mudmaster branding.

Casio G-SHOCK Analogue Digital Men's Watch GGB100X-1A9

$799.00

Details

Collection G-Shock
Style Shape/Round
Material Resin
Band/Strap Resin
Dial Colour Black
Glass Mineral
Watch Movement Analogue Digital
Water Resistance 200M

This Casio G-Shock comes with Casio's standard warranty and packaging and, dependent on style, may also include a Casio instruction manual.

Read more information regarding our Product Disclaimers.

 

Description

For the fearless adventurer and nature lover, a tough and rugged Master of G MUDMASTER featuring bezel and case constructed of heavy duty carbon and environmentally responsible materials.

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 MUDMASTER GG-B100X employs high rigidity carbon for the carbon fiber-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 fibers, it provides a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts.

The rugged design evokes the gasoline jerrycans mounted to off-road vehicles tough enough to traverse the most challenging terrain. 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 watch is 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 this tough timepiece to deliver what you need to make quick decisions and take decisive action.

 


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