Patek Philippe Grand Complications 6159G-001 Retrograde Perpetual Calendar

The Patek Philippe 6159G‑001 is a contemporary reinterpretation of the retrograde perpetual calendar, framed in a refined white gold case. Its 39.5 mm case showcases a hobnail-pattern guilloché bezel and caseback, a signature of Patek Philippe’s design legacy, while the dynamic crown-guard shoulders and ramped lugs add a modern touch. The smoked sapphire crystal dial, metallized in gray with a black-gradient rim, allows a glimpse into the watch’s mechanical heartbeat. Faceted baton-style hour markers and dauphine hands in white gold are adorned with luminescent coating for enhanced visibility, and the dial displays retrograde date, day, month, leap-year, and moon-phase indicators with crisp electroplated outlines.

Inside, the self-winding calibre 26-330 S QR drives the retrograde date hand alongside the complete perpetual calendar and moon-phase functions. This 28 mm movement, with 368 components and 31 jewels, operates at 4 Hz thanks to its Gyromax balance and Spiromax balance spring, delivering a power reserve of 35 to 45 hours. A 21k gold central rotor ensures efficient winding, and all functions meet the exacting standards of the Patek Philippe Seal. The watch is completed by a black composite strap with fabric pattern, cream stitching, and a patented triple-blade fold-over clasp in white gold, melding contemporary style with technical excellence.