Oris divers small seconds is a watch designed to meet the requirements of professional divers it is equipped with oris 643 automatic calibre a modification of eta 2836 2 the movement performs 28 800 vibrations per hour and has 27 bearing jewels a 38 hour power reserve is available for the convenience of the wearer hands indices and bezel elements are luminous for improved night time visibility a date display is positioned at the 6 oclock mark subsidiary seconds are available as well t