Patek Philippe Double Signed Dial - Ref. 3405

This is a lovely rectangular double signed Patek Philippe  reference 3405, circa the 1960's.  The solid yellow gold case has patina throughout.  The sides of the case angle downward as well as the lugs have a downward angle as well.  The dial has been refreshed but still retains its original raised enamel Patek Philippe signature.  The lower quadrant of the dial is signed Hausmann & Co.  Hausmann & Co is an Italian company that was established in 1790 and specialized in high end timepieces and jewelry.  This rare timepiece is powered by a manual 23-300 movement.