PATEK PHILIPPE | REFERENCE 5971 A PLATINUM AND DIAMOND-SET PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH MOON PHASES, LEAP YEAR AND 24 HOURS INDICATION IN SINGLE FACTORY SEAL, CIRCA 2009

Dial: black Calibre: cal. CH 27-70 Q mechanical, 24 jewels Movement number: 3'049'898 Case: platinum, screw down sapphire crystal display back Case number: 4'481'960 Closure: black Patek Philippe alligator strap and platinum buckle Size: 40 mm diameter Signed: case, dial and movement Accessories: Patek Philippe Certificate of Origin, additional case back, setting pin, instruction manual and presentation box

In production from 2007 until 2010, reference 5971 is the diamond-set version of reference 5970 - the very last Patek Philippe perpetual calendar chronograph wristwatch made in a series to use a Lemania 2310 based movement before the introduction of reference 5270. Due to its generous and modern case proportions, this reference is a favorite among the watch community, and has increased in popularity and collectability over time. The bezel is notably set with top-grade diamonds, totaling approximately 4.37 carats. The black dial is further enhanced by diamond-set numerals.