Oris big crown pointer date is a very innovative aviation timepiece that also embodies all of the oris watch making traditions it is equipped with oris 754 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 markers are luminous for improved night time visibility a separate hand and a scale around the outer rim of the dial provide information about the current date additional us