You serial will most likely be between 1.1 to 1.4 mil and the brochure could be from 1965 to 1968.
It looks like the papers are for a serial number 875xxx which makes it a 1962 set of papers. Unless the watch some how has the serial number 875xxx the papers are for a different watch. It is still possible that the paper could be stamped 1965 but that does seem a little far.
Waiting to help you solve the mystery
Bill