Patek Philippe Perpetual Calendar Split Second Chronograph 5951P

Patek Philippe Split Second Chronograph 5951P, 5951P -001, 5951P001, this is a very rare and special reference from Patek which houses the world's thinnest perpetual calendar split-second chronograph caliber ever produced, 950 platinum cushion-shaped case on a strap with a platinum tang buckle, fully in-house manual wind Patek Philippe Caliber CH 27-525 PS Q movement expertly finished with the Patek Philippe seal, 48-hour power reserve, 60-minute split-second chronograph, pusher built into the crown at 3 o'clock engages the stop, start, and reset functions of the chronograph, pusher between 1- and 2 o'clock engages rattrapante function, perpetual calendar with numerical leap year indicator, moon phase display at 12 o'clock, running seconds at 9 o'clock, black dial, white printed railway-tack minute scale, baton indices, red chronograph hands, sapphire crystal, display back. Diameter: 37mm, Thickness: 12.9mm. Like New with large Patek Philippe presentation box, leather folio and original certificate dated 2014. The watch was purchased from the original owner.