As one of the most desired pocket watches of the mid-20th century, the ref. 605HU (Heure Universelle) is the timepiece that literally tells time around the world. Developed by master watchmaker Louis Cottier in the early 1930s, a total of 95 movements were finished by Cottier with his World Time mechanism for Patek Philippe for use in the ref. 605HU. This example is in 18K rose gold and only 27 pieces are believed to have been cased in this attractive metal. To date, only 11 have surfaced and this is one of the best-preserved examples known with a pink on pink dial.