Bc3 advanced day date is the newest addition to the oris bc3 collection the design of the timepiece was created in 2011 it is equipped with oris 635 automatic calibre that performs 28 800 vibrations per hour and has 26 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 a day and date display is positioned at the 6 oclock mark additional useful features include screw in security crown see