Patek Philippe. A very fine PT950 platinum annual calendar chronograph automatic wristwatch
Ref:5960P, Case No.4506594, Movement No.3507139, Sold in 2010
40-jewel Cal. CH 28-520, nickel-finished lever movement stamped with the Geneva Seal, free sprung Gyromax balance, self-compensating flat balance spring, 18ct gold rotor, blue brushed dial, outer five minute divisions, applied faceted baton hour markers and luminous dots, luminous filled feuille hands, white chronograph hand, apertures for day, date and month, engine-turned subsidiary dial for 30 minute and 12 hour registers with day/night indication, power reserve indication at 12, brushed and polished round case, screw down exhibition case back, concave bezel, two round chronograph pushers in the band, diamond in the band at 6, fitted Patek Philippe leather strap with PT950 platinum Patek Philippe deployant clasp, together with fitted box, Certificate of Origin, instruction manual, swing tag and setting tool, case, dial and movement signed 40.5mm.