PATEK PHILIPPE, 18K CALATRAVA WITH HOBNAIL BEZEL, REF. 3520D

Patek Phillippe launched the reference 3520 in 1965. At that time it was advertised as the flattest waterproof watch in the world. This particular example is part of the second series of production because it houses the caliber 177 movement. This watch features a beautiful hobnail bezel, white dial with black Roman numerals and a screw-back case. These style elements give this watch a classic Patek Philippe look and feel.