![]() ![]() The exposition took place from 1 April to 31 October 1867 with 50,226 exhibitors and was attended by 9,238,967 persons (including exhibitors and employees). The site chosen for the Exposition Universelle was the Champ de Mars, the great military parade ground of Paris, which covered an area of 119 acres (48 ha) and to which was added the island of Billancourt, of 52 acres (21 ha). A commission was appointed with Prince Jérôme Napoléon as president, under whose direction the preliminary work began. In 1864, Emperor Napoleon III decreed that an international exposition should be held in Paris in 1867. The decimal time system never proved popular, only a small quantity of such watches was ever made and even fewer have survived to date, making those reappearing in public particularly rare finds. The plan did not gain acceptance and was abandoned in 1900. The commission proposed a compromise of retaining the 24-hour day, but dividing each hour into 100 decimal minutes, and each minute into 100 seconds. In 1897 another attempt at the decimalization of time was made when the Bureau des Longitudes created the Commission de décimalisation du temps with the mathematician Henri Poincaré as secretary. The French Republican Calendar, which was introduced at the same time and divided the month into three décades of 10 days each, eventually also fell out of use, and was abolished at the end of 1805. It was not officially used until the beginning of the Republican year III, 22 September 1794, and was officially suspended on 7 April 1795. Although many clocks and watches were produced indicating both standard time with numbers 1-24 and decimal time with numbers 1-10, decimal time never caught on. Like the metric system, the new time measuring system was one of the many reforms undertaken by the National Convention. As confirmed by the copy of the worksheet, it was made for the World Exhibition in Paris in 1867 where it was most certainly exhibited with other masterpieces from Jürgensen's workshop.ĭecimal time was introduced during the French Revolution in the decree of 5 October 1793. The present lot is a highly unusual and most probably unique example of a watch made by Jules Jürgensen featuring the decimal time system, using the numbers 1 to 0 (instead of X) for the 10 hours and 1 to 100 for the 100 seconds. More than 500 of these watches, including the present lot, are extensively described and illustrated in Die Taschenuhrensammlung von Gerd Ahrens by Christian Pfeiffer-Belli, Peter Friess, Josef M. Over a period of more than 60 years, he acquired over 700 significant watches, many of them unique pieces. Ahrens systematically choose watches with unusual escapements, striking mechanisms or winding systems, covering many technical achievements ranging from the 16th to the early 20th century. Following his motto "rare escapements in pocket watches", Mr. The collection of the famous German collector Gerd Ahrens who passed away in Switzerland in 2005, was one of the most significant private collections ever assembled, impressively documenting the technical history of the pocket watch. The pocket watch collection of Gerd Ahrens Since 23 November 2007: private collection ![]() 400 Jahre Entwicklung der Uhrenhemmung", lot 456 Sold on 23 November 2007 at Auktionen Dr. ![]() Until 23 November 2007: Gerd Ahrens Collection Acquired by Gerd Ahrens on 14 November 1974 at Auktion Koller, Zürich, Lot 3364 ![]()
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