PERPETUAL CALENDAR CHRONOGRAPH MODEL, REF. 5270P-001, MOVEMENT NO. 7'380'960, CASE NO. 6'449'515, CIRCA 2021

Offered 'full set' and in good overall condition, the present Patek Philippe Perpetual Calendar Chronograph wristwatch reference 5270P-001 is a wonderful and complicated contemporary masterpiece for the discerning collector.

The Reference 5270P-001
The Patek Philippe Reference 5270P-001 marks a significant turning point in the evolution of the manufacture’s most celebrated complication, introduced in 2011 as the successor to the Patek Philippe Reference 5970. While preserving the lineage’s timeless design codes, the reference 5270 features a slightly larger 41 mm. case—an increase from the 40 mm. case of its predecessor—offering a more contemporary wrist presence. Most importantly, it debuted the entirely in-house caliber CH 29-535 PS Q, replacing the revered Geneva Seal Lemania-based movements that had powered earlier generations. This technically sophisticated movement not only underscores Patek Philippe’s full independence in chronograph production, but also introduces enhanced functionality, including a leap year indication and a day/night display, further improving legibility and usability of the perpetual calendar. The present platinum reference 5270P-001, with its weighty presence and discreet luxury, represents the pinnacle of modern perpetual calendar chronograph design—combining heritage, innovation, and mechanical excellence in a highly desirable form.