Oris artelier complication brags various useful functionalities that the wearer will use on a daily basis 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 the second time zone and the moon phase display are the most prominent complications two subsidiary dials provide information about the day and date hands