Patek Philippe Annual Calendar Regulator 5235G-001

PATEK PHILIPPE, REF. 5235G-001, A FINE WHITE GOLD ANNUAL CALENDAR WRISTWATCH WITH REGULATOR-STYLE DISPLAY, CASE NUMBER: 6'039'376, MOVEMENT NUMBER: 5’850’577 | Christie’s

CIRCA: 2016 CASE MATERIAL: 18k white gold DIAMETER: 40.5 mm STRAP MATERIAL: Beige calf leather DIAL: Brushed silver MOVEMENT: Cal. 31-260 REG QA, automatic, 29 jewels FUNCTIONS: Time, annual calendar, regulator display BUCKLE: Patek Philippe 18k White Gold buckle WITH: Patek Philippe leather folder, product literature, corrector pin, Patek Philippe presentation box and outer packagingUnveiled at Baselworld 2012, Reference 5235 stands out as a innovative model in Patek Philippe’s lineage. At its core is the Caliber 31-260 REG QA, where "Régulateur Quantième Annuel" signifies its unique regulator-style display combined with an annual calendar. This marks the first time Patek Philippe has incorporated a regulator dial into an annual calendar wristwatch, reinforcing the brand’s commitment to precision and innovation. Unlike conventional timepieces, the 5235 features non-coaxial hour and minute hands, meaning they do not share the central pinion but are independently positioned—enhancing legibility and accuracy. Among collectors, this reference is widely regarded as one of the most significant technical advancements in Patek Philippe’s modern history.