1) tells time
2) displays at night
I do have a Suunto underwater watch good to 150 meters. Has a computer that can tell you everything about diving except when the great white is about to eat you. Seriously, a million functions that Steve can give you a better idea than I can as far as what it does. From the water temp. to how deep your second to last dive was on a trip two years ago-should you ever want to know that. Problem-its really a heavy watch to wear around the house or anyplace not in the water.
