Patek Philippe 5270G-001 (Pre-owned - Excellent) — USD 114,950 on eBay

The Patek Philippe Grand Complications reference 5270G-001 represents a significant offering within the brand's perpetual calendar chronograph lineage. This reference marked a new chapter for Patek Philippe's highly regarded perpetual calendar chronographs, succeeding the esteemed 5970. It introduced a new in-house movement, distinguishing it from previous generations that utilized modified Nouvelle Lémania calibers. The 5270G-001 is characterized by its white gold case and a silver opaline dial, presenting a classic and understated aesthetic for a highly complicated timepiece. The watch features a 41mm white gold case, distinguished by a concave bezel and two-tier lugs, contributing to its refined profile. It houses the caliber CH 29-535 PS Q, a manually wound movement developed and manufactured entirely by Patek Philippe. This movement integrates a perpetual calendar with day, month, leap year, and day/night indications, alongside a chronograph function with a 30-minute counter and a moon phase display. The power reserve for this caliber is approximately 55 to 65 hours, and it is protected by a sapphire crystal. As a perpetual calendar chronograph, the 5270G-001 appeals to collectors seeking a blend of traditional watchmaking complications with contemporary execution. This specific iteration, with its white gold case and silver dial, offers a versatile and enduring presentation. It is a key reference for understanding the evolution of Patek Philippe's grand complications, particularly in its transition to fully integrated in-house movements for this complex combination of functions.