Patek Philippe Ref. 5960P-015 Very Fine Platinum Automatic Annual Calendar Chronograph Wristwatch
Case: No. 4543027, three body, platinum, diamond set between the lugs, 40 mm, round push buttons, concave bezel, screw down transparent case back, sapphire crystals
Dial: blue, applied white gold baton indexes, apertures for the days of the week, the date and the months, combined 30/60 minute and 12-hour totalizer, day/night indication, power reserve indicator, luminous white gold feuille hands, outermost 1/5th second divisions and luminous dots
Movement: caliber CH 28-520/521, stamped with the PP seal, No. 5564836, 40 jewels, gold rotor, free sprung Gyromax balance, self-compensating balance spring, shock absorber
Band: blue Patek Philippe band and platinum folding clasp
Signed: Patek Philippe Geneve, with presentation box, leather folder with booklets and Certificate of Origin showing October 2011 as the date of purchase

Note: The present lot is powered by the caliber CH 28-520 IRM QA 24H, an in house Patek Philippe movement. It features an integrated self-winding chronograph movement with a flyback mechanism, or "retour en vol", which allows the user to restart timing by only pressing the pusher at 4 o'clock. The present example also bears the Patek Philippe Seal (introduced in the mid-2009) instead of the earlier Seal of Geneva quality hallmark. The PP seal ensures the rate of accuracy between -3 and +2 seconds per 24 hours for mechanical movements larger than 20 mm in diameter.

Condition Report*:Type: Patek Philippe Ref. 5960P-015 Very Fine Platinum Automatic Annual Calendar Chronograph Wristwatch
Dial: blue, white gold baton indexes
Hands; luminous white gold feuille hands
Metal: platinum
Case No: 4543027
Case Info: three body, transparent screw down back
Case Width: 40 mm
Crystal: sapphires
Watch Movement: caliber CH 28-520/521, stamped with the PP seal, No. 5564836, 40 jewels, gold rotor, free sprung Gyromax balance, self-compensating balance spring, shock absorber
Band: blue alligator Patek strap and platinum clasp
Circa: sold 2011
Condition: dial is superb, case is very sharp and very good, movement is very good and running, strap is as new, clasp is very good