Patek Philippe Ref. 5140R: Il Perpetual calendar, Pink gold and pink dial

The Patek Philippe Reference 5140R is among the most refined expressions of the perpetual calendar complication in the entire history of Swiss watchmaking. Housed in an 18k rose gold case of just 37.2 mm and a mere 8.85 mm in thickness, the 5140R achieves what very few perpetual calendar watches have managed: a complication of extraordinary mechanical complexity presented within a case of true dress-watch proportions. The brown dial of this example, with its warm tonal harmony against the rose gold case, creates a combination of exceptional visual coherence and understated luxury that places this watch in a category entirely its own.

Key Specifications

Collector's Note

The Reference 5140R is powered by the Calibre 240 Q, one of the most celebrated movements in the Patek Philippe manufacture. The 240 Q is a self-winding perpetual calendar movement built around the ultra-thin 240 base calibre, itself a landmark achievement in automatic movement architecture. The peripheral micro-rotor, which winds the mainspring without occupying the centre of the movement, allows the Calibre 240 Q to achieve a total thickness that would be impossible with a conventional rotor, and it is this architectural decision that makes the 5140R's combination of perpetual calendar complication and dress-watch proportions possible. The perpetual calendar mechanism, which correctly accounts for months of different lengths and leap years without requiring manual correction until the year 2100, is programmed entirely mechanically, with no electronic assistance of any kind. The brown dial, a configuration that Patek Philippe has offered selectively on the 5140R, pairs with the rose gold case in a manner that is simultaneously warm and authoritative, and it is a combination that collectors of Patek Philippe dress watches have consistently identified as among the most desirable configurations of the reference.

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