New Casio G-Shock Mudmaster watches with Quad Sensor now available in the UK

Three new Casio G-Shock Master of G Mudmaster GG-B100 watches are now available in the UK. A wider range of models in the GG-B100X series, with five versions, was officially unveiled in early February 2025.

You can now buy the Casio G-Shock GG-B100X-1A, GG-B100X-1A3 and GG-B100X-1A9 watches at the brand’s online store in the UK for £349 each. Two of these models, the GG-B100X-1A and the GG-B100X-1A3, have also been listed alongside the GG-B100XM-1A watch at Casio’s online stores in EU countries like Germany. Here, they will retail for between €399 and €419, and are said to be ‘coming soon’.

The G-Shock GG-B100 is a Quad Sensor watch, with a digital compass, altimeter/barometer, thermometer and step counter. It also offers Bluetooth connectivity for auto time adjustments and other tools in the Casio Watches smartphone app. Plus, you can view sunset and sunrise times on the watch, and access a stopwatch, timer and daily alarms. The model is shock and mud-resistant, with 200 m water resistance and Casio’s Carbon Core Guard structure. Each variant has a carbon casing, metal bezel and resin strap; the GG-B100X-1A is all black, the GG-B100X-1A3 is black and khaki, and the GG-B100X-1A9 has a black face and bright orange band.

The other two Casio G-Shock Master of G Mudmaster GG-B100 watches, the GG-B100XM-1A and the GG-B100XMB-1A, are still listed on the Coming Soon page on the brand’s UK site. It is unclear when the Casio G-Shock GG-B100X watches could be released in the US.