Get your anaerobic training up to speed with this chronograph sport watch, a great choice for runners who wish to work more efficiently based on heart rate. The chest strap has a built-in sensor while a separate wrist unit displays information in real time. Brand: ASICS Dial Color: Gray Strap: Black plastic Clasp: Buckle Movement: Quartz Water Resistance: 45m Case Width: 42mm Case Thickness: 12mm Bracelet Dimensions: 240mm long; 20mm wide Model No.: CQAH0101 Special Features: Stopwatch; alarm; date display; 2 countdown timers; 300-lap memory; heart rate target zones; data recall; marathon goal target function; includes chest strap Jewelry photos are enlarged to show detail.