Oris artelier complication is a timepiece that comes with a number of useful and practical complications the watch is equipped with oris 581 automatic calibre a modification of eta 26882671 the movement performs 28 800 vibrations per hour and has 17 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 two subsidiary dials provide information about the day and date a third sub dial indicates