18K Patek Philippe manual wind fine quality wristwatch circa 1965 with white dial with gold baton markers and simple hour and minute hands only. The 18 jewel cal 175 movement is adjusted to 5 positions plus heat, cold and isochronism, it has been serviced by our watchmaker and is working flawlessly. The Patek reference number of this timepiece is 3520, the serial number is 1132558. The movement bears the import code “HOX” which indicates that it was made for the American market and was imported by the Henri Stern Watch Agency of New York. Henri Stern is the American representative for Patek Philippe and many watches that they imported were retailed by Cartier. Photos are not actual size, watch measures 32 mm across (not including crown) x 38 mm lug to lug and is fit with a non- factory leather bracelet.