Eco Drive Skyhawk Blue Angels TitaniumTime and calendar in 22 time zones Three world time alarms.1/100 second chronograph measures up to 24 hours.99 Minute countdown timer.One-Touch interchangeable Anlog/Digital times.Rotating slide rule bezel.Screw-Back case.4-Year power reserve.Power saver function.Case material,all titanium.Water resistance up to333 feet.Crystal material,mineral glass crystal. Safety fold over clasp with push button