The Grandmaster Chime Ref. 5175 crowned Patek Philippe's 175th anniversary in 2014.With 20 complications, a movement composed of 1366 parts, six patented innovations, and a double-face case, it is Patek Philippe's most complicated wristwatch. And also the first with a Grande and a Petite Sonnerie as well as three further strikework functions (minute repeater, alarm with time strike, and date repeater). Experience the inception and production of the masterpiece with a reversible case in rose gold. Only seven of them exist.