The serially-produced perpetual calendar chronograph is one of Patek Philippe's most historical and iconic models to date. Its roots date back to 1941 with the creation of reference 1518. Today, the Genevan manufacture continues the tradition by producing an exclusive and updated take on the complicated wristwatch. Reference 5270 was first introduced in 2011 and is the largest perpetual calendar chronograph ever made by Patek Philippe. Featuring an in-house caliber, the model can generally be divided into a few series:

First series: The hands and numerals are black, offering the highest legibility among all the three series. Most notably, it lacks a tachymeter scale.

Second series: The hand and numerals are now a more classic silvered finish and the tachymeter scale has been added. The scale follows the contour of the subsidiary seconds counter creating what is now known as "The Chin".

Third series: The final iteration features unchanged silvered numerals and hands, however the tachymeter scale now stops where it intersects the outer date ring.

Sold at the storied retailer Wempe and offered in excellent condition, this third series 5270 has hardly been worn throughout its lifetime and is offered with its original accessories such as its original certificate, numbered additional case back, setting pin and fitted presentation box.