Patek philippe perpetual calendar 5320

The Patek Philippe Perpetual Calendar 5320 blends a classic perpetual calendar complication with vintage-inspired design from 1940s models.

About this subject

The Patek Philippe Ref. 5320 is a perpetual calendar watch that pays homage to the Swiss manufacturer's rich heritage. Introduced in 2017, it replaced the previous Ref. 5140, featuring a 40 mm case in rose or white gold with a straighter profile and tapered lugs reminiscent of 1940s models. The silver opaline dial displays subdials for day, month, moon phase, and date, with dauphine hands and applied gold indices. The perpetual calendar automatically adjusts for varying month lengths and leap years, requiring no correction until the year 2100 (except for the century rule). Powered by the caliber 240 Q automatic movement, an ultra-thin calibre with a 22K gold micro-rotor, the watch has a 48-hour power reserve visible through the sapphire caseback. The Ref. 5320 is considered a transitional piece, blending classic elegance with modern practicality, highly sought after by collectors seeking a discreet yet technically refined perpetual calendar. Unlike other Patek models such as the Ref. 5270 with a chronograph, the 5320 focuses solely on the calendar function, maintaining a clean and symmetrical look. The dark brown alligator leather strap with beige stitching complements the vintage tone. The case is water-resistant to 30 meters, suitable for daily wear but not for diving. The crystal is sapphire with anti-reflective coating. Production is limited though not a numbered edition, ensuring exclusivity without a fixed run. Secondary market prices often exceed retail due to high demand.

Frequently Asked Questions

What is the difference between the Patek Philippe 5320 and 5140?

The 5320 replaced the 5140 in 2017. Key differences include case size (40 mm vs 37 mm on the 5140), more tapered lugs, and dauphine hands. The movement remains the caliber 240 Q, but with some aesthetic and finishing updates.

Does the Patek Philippe 5320 require manual adjustment for leap years?

No. The perpetual calendar on the 5320 automatically adjusts for months with 28, 30, or 31 days and handles leap years. The only correction needed will be in the year 2100, which is not a leap year per the Gregorian calendar rule, but the mechanism is designed to handle this with a simple manual adjustment.

What is the power reserve of the caliber 240 Q movement?

The caliber 240 Q has a power reserve of approximately 48 hours. The movement is automatic with a peripheral 22K gold micro-rotor, allowing winding without a central rotor, maintaining a thin profile.