Oris tt3 chronograph black is a very classy and sporty timepiece that is equipped with various useful complications the watch brags oris 674 automatic calibre that is based on valjoux 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 the chronograph of the timepiece comes with a 60 second a 30 minute and a 12 hour register a date display is positioned at the 6 oclock mark indices and hand