Take things up a notch with this perpetual calendar chronograph. Includes a 1/20 second chronograph up to 60 minutes, 12/24 hour time, dual time, tachymeter, date, alarm and non-reflective crystal. The 43mm titanium case sports a one-way rotating elasped time bezel & screw-back case with a brown leather strap with contrast stitching and 200M WR. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E812.