How a watch works - film from Hamilton in 1949Posted on 27 Nov 2005.
This is very cool. Archive.org has public-domain film from the legendary Hamilton company, an introductory film on "How a Watch Works." Black and white, download or streamable.
Also on the same site, another Hamilton film on 'What makes a fine watch fine' - http://www.archive.org/details/WhatMake1947