The perpetual calendar chronograph is deeply rooted in Patek Philippe’s heritage. Dating back to 1941, the lineage consists of five references, the ref. 1518 (1941-1951), the ref. 2499 (1951-1987), the ref. 3970 (1987-2004), the ref. 5020 (1994-2002), the ref. 5970 (2004-2011) and finally the latest iteration, the ref. 5270, each distinct with personality and are monumental pieces by the firm.

The reference 5270 launched in 2011, marked an important milestone, it was the very first perpetual calendar chronograph with a fully in-house movement, the cal. CH 29-535 PS Q. Under Patek Philippe’s persistence on the advancement of their timepieces, the model has had several iterations since its introduction, and are notable by the following characteristics:

First series: Hands and hour markers are blackened white gold, offering the highest degree of legibility amongst all three series. The dial features railway minute divisions combined with Arabic five minute divisions and were produced from 2011-2013.

Second series: In production from 2013 to 2015, a tachymeter scale that follows the contour of the subsidiary seconds counter is now added, also known as “The Chin”. (The present example)

Third series: The final iteration features the tachymeter scale now stops where it intersects the timekeeping seconds subsidiary dial.

The present example Patek Philippe ref. 5270G with a mesmerizing sunburst ocean blue dial is one of the most cherished iterations of the reference by collectors. Belonging to the second series and only in production for two years, it is certainly a desirable timepiece to acquire for its attractive value.