Oris artelier skeleton is the first skeletonized timepiece from the artelier collection it is equipped with oris 734 automatic calibre that performs 28 800 vibrations per hour and has 26 bearing jewels the movement is visible through the large dial aperture a 38 hour power reserve is available for the convenience of the wearer hands are luminous for improved night time visibility the silver guilloche dial ring increases the elegance of this intriguing watch additional useful features inclu