Oris watch tt1 formula 1 team att williams inspired the creation of oris tt1 day date a watch for the motor sports fan it is equipped with oris 735 automatic calibre that performs 28 800 vibrations per hour and has 26 bearing jewels a 38 hour power reserve is available for the convenience of the wearer hands are luminous for improved night time visibility a day and date display appears at the 3 o clock mark additional useful features include stainless steel crown see through case back a