Oris watch artix chronometer oris artix chronometer date is a stylish and very elegant watch it is certified by controle officiel suisse des chronometres cosc the swiss institute that tests chronometers the watch is equipped with oris 737 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 date display is positioned a