Patek Philippe Complications “Gondolo Calendario” Annual Calendar Moonphase – Platinum – 40mm x 38mm 5135P-001 GREY BLACK CROCODILE

The Patek Philippe Complications “Gondolo Calendario” Reference 5135P-001 occupies a distinct position within the brand’s modern collection, drawing its aesthetic from the Art Deco-inspired Gondolo series while housing one of Patek Philippe’s most practical and sought-after complications. This 40mm by 38mm rectangular case is crafted from solid 950 platinum, a material distinguished by its significant weight and rarity. The case features a complex, multi-tiered construction with alternating brushed and polished surfaces, demonstrating a high level of hand-finishing. It is fitted with a black crocodile leather strap and paired with the manufacturer’s platinum fold-over clasp. The grey dial utilizes applied Breguet numerals and chemin de fer minute track, with blued steel feuille hands for optimal legibility. The annual calendar and moonphase apertures are symmetrically positioned, creating a balanced and highly functional display.

This watch is powered by the self-winding Caliber 315 S QA LU, a movement that is both technically advanced and meticulously finished. The annual calendar complication automatically accounts for months with 30 or 31 days, requiring correction only once per year at the end of February. This is paired with a moonphase indicator that is accurate to within one day in 122 years. The movement is visible through the sapphire crystal case back and features traditional Geneva Striping on the bridges, beveled and polished edges, and a 21k gold central rotor. With a power reserve of approximately 48 hours, this movement represents a significant engineering achievement from Patek Philippe, integrating multiple calendar functions into a robust and reliable automatic caliber.

The present example is in mint condition, showing only the most minimal signs of careful handling, with the case, crystal, and dial remaining in outstanding original state. It is accompanied by its original manufacturer papers, which are essential for authentication and future service. The set also includes an additional, new, unused black crocodile strap and matching platinum buckle, providing immediate value and convenience for the next owner. As a platinum-cased annual calendar with a distinctive rectangular form, the 5135P-001 is a limited and highly collectible reference. Its production run was not extensive, and examples in this condition with full documentation are particularly rare on the secondary market. This model’s combination of a complex mechanical movement, a precious metal case, and a classic design ensures its enduring appeal and strong value retention among serious collectors.