Patek Philippe Tank

A Patek Philippe eighteen carat gold gentleman's dress watch.  A classic dress watch that is hard to not love.  It is the pure essence of classic, refined elegance from the world's greatest watch maker.  The watch has fine shaped, slender, eighteen carat gold stick hands, a classic silvered dial with black, slightly raised, Roman numerals laid out around the classic 'Tank' style case.  The unpolished case is in great condition, and due to the exquisite nature of the Patek movement, it is very slim compared to that of the comparative Cartier Tank model.  The crown is original complete with the Patek Philippe logo. The reference of the watch is the 3521, with a case serial number 2,653,XXX, putting the production circa 1960's. The watch is powered by the ultra thin calibre 175 movement which was based on a ninety year old design by F. Piguet, is still in use today. This 9 ligne movement has been extensively improved upon by Patek, as one would expect, adding their patented free sprung