Oris watch big crown pointer date oris big crown original pointer date is the modernised version of a timepiece created in 1938 the oversized crown is the most prominent characteristic of this model the watch 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 indices are luminous for improved night time visibility a separate hand and a scale around th