This red arrows skyhawk watch from citizen features atomic timekeeping with radio controlled accuracy the case and bracelet are constructed from citizens super titanium which is 5 times stronger than stainless steel and lighter for a comfortable feel 47mm case width citizen eco drive powered by light a watch that never needs a battery world time in 43 cities dual time perpetual calendar 1100 second chronograph two alarms anti reflective crystal glass water resistant to 200 metres