Sotheby's sold a pink gold 2499 for CHF 1.68M including premium on November 16, 2008, lot 220. It comes back now as the star lot of the auction managed by Christie's in Geneva on November 9 celebrating the 175th anniversary of the Swiss brand. It is estimated CHF 1.6M, lot 59.
Here is how I introduced the 2499s in 2008 (including a few improvements) :
Sotheby's tells that when Patek Philippe launched the 2499 in 1950, no other manufacturer was able to produce a watch with such a complication. For this reason, this chronograph wristwatch including perpetual calendar and moon phases remains particularly looked after by collectors. It was produced until 1985.
The example to be sold, dated 1951, is one of the first series, and has the rare characteristic of being in pink gold. Sotheby's announced that its condition of preservation is remarkable.
Antiquorum sells another 2499 on October 16, 2008 in New York. Made in 1956, it is still part of the first series, which is characterized by its square pusher button. This watch was sold for $ 1.5M including premium.
In October 2002, a pink gold 2499 of 1951 was sold for CHF 3.2 M including premium by Antiquorum in Geneva (source: Vox, the magazine of Antiquorum, early 2003 issue).