For the fearless adventurer, a tough and rugged master of g mudmaster featuring a strong, durable metal bezel. 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. Digital-analog dial 55. 4 㗠51. 3 㗠19. 4mm bio-based carbon and stainless steel case; black ion-plated bezel mineral glass black bio-based resin band bluetoothâ®: connects to a smartphone and automatically adjusts the time water-resistant to 200 meters