Casio G-Shock Men's GG-1000-1A Mudmaster Watch Designed for hardworking and rugged men, the G-Shock Twin Sensor Mudmaster Watch will never let you down Mud resistant construction helps to ensure that nothing gets into the watch when work takes you deep into the dirt and sludge Multiple gaskets are used on the pipes that guide buttons and shafts, which keeps mud out These pipes not only act to protect buttons from impact, they also enhance button operation Shock Resistant