Patek Philippe’s Annual Calendar Regulator is a house speciality. This classic piece, invented and patented in 1996 with a movement that requires a correction on March 1 every year, has been given a brand new look by this iconic Swiss brand. Its precision movement is housed in a 40.5 mm rose gold case that features a two-tone dial in graphite and ebony-black with a vertical satin finish. The main dial hand displays the minutes, while secondary dials display the hours and seconds. A uniquely classic yet chic design.