Triax C3 - Sport watch, Heart rate monitor, Digital quartz movement, Chronograph, Includes matching heart rate transmitter and chest strap which reads the electrical pulses of your heart and transmits data to the watch, Exercise timer, Brushed silver-tone stainless steel and urethane bezel, Black polycarbonate case, Shock orange polycarbonate selector buttons, Brushed silver-tone stainless steel and urethane caseback, 30 meters/100 feet water resistant