Casio Unisex Gray Dial Black Resin Band Digital Japanese Quartz Watch - W-215H-2AVDF Cycling Helmet one of the world's first

Casio Unisex Gray Dial Black Resin Band Digital Japanese Quartz Watch W 215H 2AVDF Cycling Helmet one of the world's first one of the world's first automatic chronographs Powered by light energy no battery change required 6 month power reserve once fully charged Chronograph measures up to 60 minutes of elapsed time in 1 5 second increments with split time measurement function Blue dial with sunray finish and red accents Date calendar 24 hour sub dial LumiBrite hands and markers Curved sapphire crystal with anti reflective coating on the inner surface Dual tone red and blue tachymeter bezel Screw down case back Case diameter: 41 Blade Length: 85 Millimeters