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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"'', it weighs 1.1 kg, exhibits 24 hands and has 1,728 components in total, including a thermometer, and a star chart. Made from 18 carat (75%) gold or platinum, it has an estimated value of $6 million, and took 5 years of research and development, and 4 years to manufacture. Four watches were made; one in white gold, one in yellow gold, one in rose gold and one in platinum. Before Calibre 89, Patek Philippe Henry Graves Supercomplication (created in 1933) had been the world’s most complicated timepiece ever assembled with a total of 24 different functions. Roughly 27 years later, on September 17, 2015, Vacheron Constantine introduced the Reference 57260 which took over the role of 'most complicated watch in the world' with a total of 57 complications. ==Complications (features)== * Day of the month * 12-hour recorder * Day of the week * Hour of second time zone * Moon phase display * Winding crown position indicator * Century decade and year displays * Leap year indicator * Power reserve * Month * Thermometer * Date of Easter * Time of sunrise * Equation of time * Star chart * Sun hand * Time of sunset * Split second hand 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Patek Philippe Calibre 89」の詳細全文を読む スポンサード リンク
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