The reference 5204 was initially released at Baselworld in 2012 in platinum and powered by the highly complicated movement 29-535 PS Q, the very first in-house movement fully developed by Patek Philippe which replaced the Lemania-based 27-70 Q. The platinum version was eventually discontinued in 2018. Very few watch brands have mastered the art of combing a perpetual calendar with a split-seconds chronograph as well as Patek Philippe have.

As the successor to the legendary Ref. 5004, the brand's first serially-produced split-seconds chronograph with a perpetual calendar complication, the 5204 features a day/night indication instead of a 24-hour hand display. Made in a 40 mm. case, the watch was sized for modern tastes as compared to the more vintage 36.7-mm. girth seen on the Ref. 5004. Numerous design improvements were made to the dial giving it an overall cleaner look and readability.

A pink gold version of the Ref. 5204 was introduced at Baselworld 2016, expanding the firm’s offering of the reference from just platinum when first debuted. The present reference 5204/1R-001 is further distinguished by its all gold matching bracelet, the pairing of a pink gold case with a gorgeous black dial really makes for an attractive timepiece. This watch is fresh to market and is from the original owner.