Oris artelier complication brags a multitude of useful and practical functionalities 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 three subsidiary dials are positioned to provide additional information one is designed to display a second time zone the other dials indicate the day and date a moon phase di