The SEIKO Ultimate Kinetic Chronograph 9T82 combines the reliability and high accuracy of Kinetic technology with the traditional attributes of the mechanical chronograph. One essential characteristic of the best chronographs is the reset responsiveness of the hands. To return each hand to its starting point instantaneously, this model features a heart cam snap-to-zero arrangement, which has always been an attractive feature of mechanical chronographs. To ensure the smooth movement of the hands and an instant date change, 38 rubies are used in the bearings. In addition a backlash mechanism ensures high-precision movement of the wheels and hands.