Oris Chronoris Grand Prix '70 is a limited edition timepiece that is inspired by the 1970s. The timepiece is equipped with Oris 677, a modification of ETA 7754. The movement performs 28 800 vibrations per hour and has 25 bearing jewels. A 42-hour power reserve is available for the convenience of the wearer. Hands and indices are luminous for improved night time visibility. The chronograph of the watch comes with 1/4 second centre hand, as well as a 60-second, 30-minute and 12-hour registers. A date display appears at the 6 o'clock mark. Additional useful features include Oris Quick Lock security crown, see-through case back and scratch-resistant sapphire crystal glass with anti-reflective coating. Solely 1970 such watches are available for purchase.