Patek Philippe revisits the unique style of its Annual Calendar Regulator by presenting it in rose gold, paired with a two-tone dial in graphite and ebony-black with a vertical satin finish. The caliber 31-260 REG QA self-winding movement, designed specially for this model, is notable for its high-tech regulator, incorporating a Pulsomax^® escapement and a Spiromax^® balance spring in Silinvar^® – both developed by the “Patek Philippe Advanced Research” department.

A new version in rose gold with a two-tone graphite-and-black dial. Two-tone graphite and ebony black, vertical satin finish, white transfer-printed. Rose gold. Diameter: 40.5 mm. Height: 10 mm. Water-resistant to 30 m. Sapphire crystal case back. Alligator leather with square scales, hand-stitched, matte black. Prong buckle. Annual Calendar. Regulator-style display: hour and seconds subdials, sweep minutes. Day, date, month in apertures.

Annual Calendar. Regulator-style display: hour and seconds subdials, sweep minutes hand. Diameter: 33 mm. Thickness: 5.08 mm. Number of parts: 313. Jewels: 31. Power reserve: min. 38 hours - max. 48 hours. 22K gold off-center mini-rotor. Escapement: Pulsomax^®. Balance: Gyromax^®. Vibrations/hour: 23 040. Balance spring: Spiromax^®. Hallmark: Patek Philippe Seal.