Complications 5905R-010Representing 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