This is Casio's Twin Resist TRT-101H. It's Mud and Water Resitant and has sealed button just like our Mudman. For a non-G it's very well armored. It features a 10yr battery, 5 alarms, CDT, chronograph and 5 time zones! It's a pretty cool little watch. Anyone else had one of these? I've never seen another like it besides mine.