Citizen Men's JW0035-51E Eco-Drive Sport Watch Light powered Eco-Drive Caliber U700 Japanese-quartz movement; Charges in natural sunlight or indoor light Scrath-resistant sapphire crystal; Case diameter: 54 mm; 1/1000 second chronograph measures up to 24 hours; Split lap time; Average speed calculation; 20 lap memory World time in 43 cities; Alarm function; 99 minute countdown timer; Red LED backlight function Titanium case with black Diamond Like Carbon (DLC) coating; Black dial; Rotating slide rule bezel; Screw back case; Limited Edition of 1,500 pieces worldwide Water resistant to 660 feet (200 M): suitable for recreational scuba diving