Patek Philippe Grand Complications Collection

The Patek Philippe Complications reference 5960A, introduced in stainless steel, represents a significant offering within the brand's annual calendar chronograph series. This particular reference is notable for being the first annual calendar chronograph from Patek Philippe to be offered in a non-precious metal, making it a distinctive piece in the Complications collection. It combines practical complications with a robust case material, appealing to collectors seeking a blend of utility and horological complexity.

This reference features a 40.5mm stainless steel case, housing the self-winding Caliber CH 28-520 QA 24H. The movement provides a power reserve of approximately 55 hours and is visible through a sapphire crystal case back. The dial is presented in white, protected by a sapphire crystal, and the watch is water-resistant to 30 meters. The integrated stainless steel bracelet complements the case material, providing a cohesive aesthetic.

The 5960A in stainless steel holds a specific position for collectors due to its material choice and the integrated bracelet, differentiating it from its precious metal counterparts. Its combination of an annual calendar and chronograph functions, along with the 24-hour indication, makes it a highly functional and mechanically interesting timepiece. The special hand set and case back decoration mentioned for this specific 5960A further emphasize its unique attributes within the production run.

The Patek Philippe Reference 3940 is a perpetual calendar wristwatch that was introduced in 1985, succeeding the Reference 3450. It is notable for its relatively slim profile and the integration of a perpetual calendar complication in a refined case. This reference became a cornerstone of Patek Philippe's complicated watch offerings for nearly two decades, establishing a design language for subsequent perpetual calendar models. It represents a significant period in the brand's modern history of complicated timepieces.

The watch features a 36mm case, typically crafted from yellow gold, rose gold, white gold, or platinum. It houses the self-winding Caliber 240 Q movement, which is known for its micro-rotor construction, contributing to the movement's thinness and allowing for a slimmer case profile. The movement provides a power reserve of approximately 48 hours. The dial is protected by a sapphire crystal, often accompanied by an interchangeable solid case back and a sapphire display back.

Reference 3940 is highly regarded by collectors for its classic proportions and the enduring appeal of its perpetual calendar display, which includes day, date, month, leap year cycle, and moon phases. It was produced in several series, with subtle variations in dial layout and typography, making early series examples particularly sought after. The reference is considered a benchmark for perpetual calendar watches and remains a significant piece for those appreciating traditional horological complications.