Citizen watch eco drive skyhawk at wr200 mens jy0010 50e redefine atomic timekeeping with radio controlled accuracy in 4 zones combined with eco drive technology world time in 43 cities 1100 second chrono up to 24 hours perpetual calendar 99 minute countdown timer power reserve 2 alarms includes gmt rotating slide rule bezel non reflective crystal titanium with black ion plated bezel