Take things up a notch with this Super Titanium™ perpetual calendar chronograph. Citizen's proprietary Super Titanium™ is 5x harder and 40% lighter than stainless steel for a lasting finish and comfort. This model also includes a 1/20 second chronograph up to 60 minutes for precision timing, 12/24 hour time, dual time for travel, a tachymeter for measuring speed, perpetual calendar so you'll never need to change the date, alarm and non-reflective crystal. The 43mm Super Titanium™ case sports a one-way rotating elapsed time bezel & screw-back case with a brown leather strap with contrast stitching, blue-grey dial and 200M WR. Super Titanium™ Case, Perpetual Calendar, 12/24 Hour Time, Alarm, Dual Time, Luminous Hands, Case Size: 43mm, Water Resistant To 100 Metres.