G-Shock MudMaster Watch Green Compatible w/ Casio Watches App 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 even further with the ability to handle the roughest on-land environments, earning the appreciation and trust of rangers and rescue teams operating in extreme environments. The comfortably sized GWG-B1000 features a metal exterior crafted with high-precision forging techniques and a carbon fiber-reinforced resin case that offers high strength and outstanding durability. Radio-controlled and solar-powered. Brand G-Shock Category Watches Series MudMaster Material Bio-Based Resin Size 145-215mm Proofs Shock / Water / Mud Resistant Power Source Solar Band Color Green Compatible With Casio Watches App