Perpetual calendar chronograph
2003/full set & extract
Patek Philippe perpetual calendar chronograph was introduced in 1941, with Ref. 1518 being the first model.On November 12, 2016, a Ref. 1518 in steel became the most expensive wristwatch ever sold at auction (until October 2017), fetching a record-breaking US$11.14 million (11,002,000 CHF) in Geneva (through Phillips' auction house).
As the successor, Ref. 2499 is widely considered to be one of the greatest watch models in the world.Historically, only 349 pieces of Ref. 2499 were made from 1950 to 1985 - around 9 pieces each year.Over the course of 35 years, four series of Ref. 2499 were introduced, exerting a strong influence on the watch designs of many other renowned watchmakers. As of June 2019, Ref. 2499 holds eleven spots among the 59 world's most expensive watches sold at auction (over 2 million US dollars) and at least 18 pieces of Ref. 2499 have been auctioned for more than 1.5 million US dollars, with the world record being 3.880 million US dollars (3,915,000 CHF) made at Sotheby's Geneva auction on November 13, 2018. The successors to Ref. 2499 include, in chronological order, Ref. 3970, Ref. 5970 and Ref. 5270.