Patek Philippe unveils a new version of its Annual Calendar Regulator in elegant rose gold, featuring a striking two-tone graphite and ebony-black dial with a vertical satin finish. The watch showcases the self-winding Caliber 31-260 REG QA movement, designed specifically for this model and enhanced with advanced technology from the Patek Philippe Advanced Research department, including a Pulsomax® escapement and a Spiromax® balance spring in Silinvar®. The regulator-style display separates the hour and seconds into subdials, while the sweep minutes are prominently featured. Day, date, and month are displayed in apertures for added functionality. The 40.5mm rose gold case, with a height of 10mm and water resistance of 30m, is paired with a matte black hand-stitched alligator leather strap and prong buckle, combining sophisticated design with cutting-edge innovation.