Oris watch tt1 chronograph pays tribute to the williams formula 1 team this practical and sporty watch is equipped with oris 674 automatic calibre a modification of eta 7750 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 a date display appears at the 6 o clock mark the chronograph of the watch comes with a 60 second a 30 minu