The reference 3940 reveals its quality gradually. No immediate impact, but instead rewards time and attention. That quality is precisely what has made it one of the most respected perpetual calendars produced by Patek Philippe in the neo-vintage era.

This 3940 is classically crafted in yellow gold and retains the refined proportions that define the reference. The case is slim and balanced, with gently shaped lugs and a profile that sits close to the wrist. So sleek and wearable.

The dial is distinguished by its German calendar, a detail encountered less frequently and one that subtly alters the character of the watch. On the second series, we find the romantic typography with playful serifs. Some nice aging can be found in the 24h subdial. Moreover; each element exists for clarity and legibility. The result is a dial that feels calm, ordered, and confident.

At its heart is the calibre 240 Q, the ultra-thin micro-rotor movement that became the foundation for Patek Philippe’s perpetual calendar programme for decades. Technically sophisticated and beautifully finished, it allows the watch to remain elegant while accommodating one of the most complex calendar mechanisms in watchmaking.

The 3940 occupies a pivotal place in Patek Philippe’s history, bridging classical perpetual calendars of the past with a more contemporary approach to proportion and daily wear. However, it only recently jumped in popularity. Finally earning the praise it deserves.

It comes with an original Patek Philippe buckle and its extract of the archives, confirming its date of production and subsequent sale in 1991. 35 Years old, but it had and will have lasting relevance.