Casio G-Shock Mudmaster Triple Sensor Atomic GWG-1000-1A9 Mens WatchCasio G Shock Mudmaster Triple Sensor Atomic GWG 1000 1A9 Men's Watch This new MUDMASTER model portrays absolute toughness with Universal accuracy and created for jobs knee deep (or more) into rubble, dirt and debris. It has a special, vibration resistant construction that saves it when you use crushers and drills or operate heavy machinery or move large obstacles manually. It also happens to be CASIO's first analog watch with Mud Resist construction