Casio G-Shock Master of G Watches

G Shock Master of G watches are purpose‑built timepieces designed for demanding environments, from deep‑sea conditions to land and high‑altitude use. Our collection features iconic G Shock Master of G models including the Mudmaster and Rangeman for use on land, the Frogman for water and the Gravitymaster designed with aviation in mind. Engineered with shock-resistant construction, specialised sensor technology, Tough Solar power and high levels of water resistance, with Carbon Core Guard reinforcement in advanced models, these watches are made to perform reliably in mud, dust and extreme environments. Choose a Master of G when you need a watch you can depend on in challenging conditions.