Patek Philippe Annual Calendar 5035P

Patek Philippe Reference 5035P | A platinum automatic annual calendar wristwatch with 24 hour indication, Circa 2000

Dial: black Caliber: cal. 315/198 automatic, 35 jewels Movement number: 3'058'312 Case: platinum, screw down sapphire crystal display back Case number: 4'032'990 Closure: platinum Patek Philippe folding buckle Size: 37 mm diameter Signed: case, dial and movement Box: yes Papers: no Accessories: Patek Philippe presentation box and hangtagIntroduced in 1996, the Patek Philippe 5035 holds the distinction of being the world’s first annual calendar wristwatch. This was part of Philippe Stern’s desire to develop more ‘practical complications’ that could be used in everyday settings. The annual calendar, powered by the Calibre 315, is capable of distinguishing between months with 30 and 31 days and thus needs adjustment only once a year, on March 1st. This annual adjustment is what lends the watch its name. The complication has since become a mainstay of mechanical watch production at almost every brand, but Patek Philippe’s Ref. 5035 is the watch that started it all. Produced until 2005, it was offered in yellow, pink, and white gold—or, like our current example, in platinum.