Patek Philippe. A Fine and Very Rare Stainless Steel Cushion-Shaped Split-Seconds Chronograph Wristwatch with Breguet Numerals, Original Certificate, Additional Case Back, and BoxSigned Patek Philippe, Genève, Ref. 5950, Movement No. 5'251'168, Case No. 4'541'758, Circa 2010Cal. CHR 27-525 PS mechanical movement, stamped with the Patek Philippe Seal, 27 jewels, silvered matte dial, applied black Breguet numerals, black feuille hands, outer railway minute divisions, decorative motif in the four corners, two engine-turned subsidiary dials for 60 minute register and for constant seconds, cushion-shaped case, split-seconds chronograph mechanism operated through the crown and a button in the band, sapphire crystal display snap on case back, stainless steel Patek Philippe buckle, case, dial, and movement signed37mm diam.