Patek Philippe’s Ref. 5905 combines two practical and easy-to-use complications: a self-winding flyback chronograph and a patented Annual Calendar. Previously launched as a platinum model in 2015, then in rose gold in 2019, the Manufacture is reinterpreting the style of this much sought-after model this year by unveiling a first version in steel—which is a rare metal in the Patek Philippe collections—with a three-link integrated bracelet.