Representing a combination of two popular Patek Philippe complications, the self-winding flyback chronograph with Annual Calendar, Reference 5905, comes in a new rose gold version with a sunburst blue dial – a modern and elegant color accentuating the timeless style of this flagship model. The patented Annual Calendar automatically takes into account 30- and 31-day months, thus requiring only one correction per year, at the end of February. The rose gold case is distinguished by its sophisticated construction, with a concave bezel and hollowed flanks.