Patek Philippe have been synomynous with Chronograph timepieces since their first patent of the double chronograph mechanism in 1902. Designed with influences from the Patek Philippe Museum with it's Tonneau shaped case, the ref 5951 was created. Previously never offered to market and now discontinued, this particular fine and rare model is made in an all platinum hand finished case with sapphire crystal glass exhibition case back. Held on a genuine black alligator strap with red stitching and matching platinum folding clasp. Fitted with the highly complicated and decorated, ultra slim Manufacture calibre CHR 27-525 PS Q mechanical hand wound movement. Features include hours, minutes, perpetual calendar with day, date, month, moon phase and night/day indicators and split second monopusher chronograph with 60 second and 60 minute counters. Black lacquered dial with applied gold batons and transferred detailing. Finished with a sapphire crystal glass. Item is in condition single sealed in factory packaging. Box and full documentation included. Insured shipping within the Continental United States provided. TEXAS SALES TAX WILL BE ADDED TO PRICE FOR LOCAL CLIENTS. PLEASE NOTE THAT ALL ADVERTS ARE OF THE ACTUAL TIMEPIECE FOR SALE. WHEN THE WATCH IS PURCHASED THE ADVERT WILL BE REMOVED. THANK YOU.