The Patek Philippe Calibre 89 is a commemorative pocket watch created in 1989, to celebrate the company's 150th anniversary. Declared by Patek Philippe as "the most complicated watch in the world" at the time of creation, it has 33 complications, weighs 1.1 kg, exhibits 24 hands and has 1,728 components in total, including a thermometer, and a star chart. Before Calibre 89, Patek Philippe Henry Graves Supercomplication had been the world’s most complicated timepiece ever assembled with a total of 24 different functions.