Launched in 2010, reference 5950 immediately soared to the top of the wish lists of collectors everywhere. Powered by the caliber CHR 27-575 PS, which was first introduced in 2005 with the officer-style split seconds chronograph reference 5959. Not only is this movement the first example of chronographic caliber completely realized in-house by Patek Philippe, it is also the thinnest manually wound column-wheel split seconds single button chronograph movement ever designed by any manufacturer.

This movement, which can be considered a compendium of the best and most innovative horological technology available at the moment of its inception, is housed in an art deco-style case obviously inspired by the very first split seconds chronograph wristwatches of the 1920s. The cushion-shaped case, the typical dial layout with outer railway fifth of a second divisions and the two horizontal subsidiary dials, the Breguet numerals, the engraved motif at the corners of the dial (reprised on the movement as well, example of Patek Philippe's incredible attention to detail), every little detail of the timepiece is devised with the open intention of sending the beholder on a time voyage back to the 1920s and 30s.

There are a total of 5 variations with the present lot’s steel case and bracelet combination:

2014:
-blue dial with silver numerals
-white dial with black numerals
-salmon dial with black numerals

2015:
-black dial with silver numerals
-white with rose gold numerals

The present lot is one of 10 known examples that feature the highly rare and sought-after blue dial from Patek Philippe, and research shows this is the first example to be offered at auction