Patek Philippe 5059R-001 (Pre-owned - Good) — USD 41,868 on eBay

The Patek Philippe Reference 5059R-001 is a self-winding perpetual calendar wristwatch with a retrograde date display, distinguished by its officer's style case. This reference belongs to a lineage of Patek Philippe perpetual calendars that prioritize the calendar complication without additional features such as minute repeaters or tourbillons, offering a focused presentation of its complex calendar mechanism. It represents a specific aesthetic choice within the brand's perpetual calendar offerings, appealing to collectors who appreciate traditional case designs. This timepiece features an 18K rose gold case with a hinged dust cover over the sapphire crystal exhibition back, allowing for observation of the movement. The case measures 36mm in diameter and houses the self-winding caliber 315 S QR. This movement provides a power reserve of approximately 48 hours and drives the perpetual calendar functions, including day, month, leap year, and moon phases, in addition to the retrograde date. The crystal protecting the dial is sapphire. The 5059R-001 is particularly notable for its officer's case, a design element that adds a layer of traditional watchmaking craftsmanship and historical appeal. This feature distinguishes it from other perpetual calendar references that may employ more contemporary case styles. It appeals to collectors seeking a Patek Philippe perpetual calendar with a classic, understated elegance and a visible nod to historical watch case construction, fitting into the brand's diverse range of high-complication timepieces.