The Reference 5905 seamlessly blends two iconic Patek Philippe complications in a new rose gold edition, showcasing a sunburst blue dial highlighting its modern elegance and timeless style. This self-winding flyback chronograph, featuring the Caliber CH 28-520 QA 24H, is equipped with a central chronograph hand, a 60-minute counter, and a patented Annual Calendar that adjusts for 30- and 31-day months with a single correction needed annually. The sophisticated rose gold case, with its concave bezel and hollowed flanks, measures 42mm in diameter and 14.03mm in height. The sunburst blue dial is adorned with gold-applied faceted baton hour markers, and the watch is complemented by a shiny dark blue alligator leather strap with a prong buckle, ensuring both functionality and refined style.