This exceptionally rare and highly important stainless steel chronograph, reference 1579 with pulsations scale is in incredible and unpolished condition and One of only 7 examples known and the only own 1579 with a pulsation dial. Reference 1579 was originally released at the Basel fair in 1943 and was part of Patek Philippe’s collection for approximately 21 years. It is unknown how many steel 1579’s were made, however sometime in the late 1980’s, a batch of unused steel cases and dials dating from the late 1940’s were found at the Patek Philippe workshops. The firm then decided to reward their most important collectors by upgrading vintage chronographs in their collections to the newly discovered steel 1579 cases and dials. This watch illustrates perfectly today how an original steel case made in the late 1940’s would have left the factory. In today’s market, trophy vintage wristwatches become harder and harder to come by. When this watch first appeared at auction in 2007, it was cele...