Oris watch tt1 ceramic oris created the tt1 day date team to honour the accomplishments of williams formula 1 team the watch 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 and indices are luminous for improved night time visibility a day and date display appears at the 3 o clock mark additional useful features include ceramic top ring stainless steel