Citizen JV-0020-12F Eco-drive 200m Professional Divers Watch

Current depth display in digital down to 100m
Measures maximum depth and duration of dive
Dive log memory for up to 20 dives
Auto-start dive mode
Water temperature display and memory - current and minimum
Measures surface interval
3 Alarms
12/24 hour time
World Time (42 cities and UTC, 29 time zones)
Electro-luminesence backlighting
All stainless steel
Water resistant to 200m
Never needs a battery