The Patek Philippe reference 5139 is an elegant expression of the manufacture's perpetual calendar tradition, combining one of Patek Philippe's most prestigious complications with the refined aesthetics of a classic dress watch. Introduced in the early 2000s, the 5139 is powered by the automatic Calibre 240 Q, featuring a perpetual calendar mechanism displaying the date, day, month, leap year indication and moon phases. Its ultra-thin micro-rotor movement allowed Patek Philippe to create a beautifully proportioned case, preserving the elegance and comfort expected from the Calatrava family while incorporating one of haute horlogerie's most respected complications.

Produced in precious metals including yellow gold and rose gold, the reference 5139 is distinguished by its clean dial layout, refined proportions and understated sophistication. Positioned within Patek Philippe's long history of perpetual calendar watches, it represents a bridge between the traditional hand-wound perpetual calendars of the past and the more contemporary automatic references that followed. Today, the 5139 is appreciated by collectors for its classical design, exceptional movement architecture and its role as one of the most elegant modern perpetual calendar dress watches from Geneva.