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Auctioneers Dr. Crott 90th Auction

68 Johann Heinrich Seyffert, Dresden, No. 4, Height 1310 mm, circa 1800 A German astronomical precision regulator - a device of remar- kable significance for the development of precision timekeeping in Dresden at the time Case: moulded black case with stepped base and domed upper pediment, one-piece spring-loaded front door and three glass panelled sides. Dial: silvered regulator dial with large small seconds display, window for digital Roman hours I-XII, central minutes and seconds with blued steel hands; signed “Nr. 4 J.H. Seyffert 1800”. Movm.: Huygens system with two weights on endless cord, solid 4 pillar brass movement with only 4 wheels. Graham escapement, spring-suspended varnished pendulum with wooden rod and heavy brass bob. A fine and precious collector’s piece - one of about 10 numbered precision pendulum clocks. A similar piece is the astonomical long case clock No. 5 that dates to around 1801 and is kept in the collection of the “Mathematisch-Physikalischer Salon” in Dresden. Johann Heinrich Seyffert (1751-1817) Seyffert was the most eminent Saxon watchmaker of his time, even though he probably never passed his master’s examination. In 1801 Seyffert became inspector of the Mathematical-Physical Salon. He is considered the “secret and unappointed” watchmaker to King Frederick Augustus I, who also protected Seyffert from the Dresden clockmakers company that wanted to bar him from carrying on his craft because of his missing apprentice certificates. Seyffert sold most of his watches to the royal family, scientists and explorers. One of his customers was Alexander von Humboldt, who bought an important pocket chronometer of excep- tional accuracy for his expeditions. Source: “A. Lange & Söhne” by Reinhard Meis, Munich 1997, pp.18. The exceptional reputation of the “secret” clockmaker to the court Johann Heinrich Seyffert, who sold most of his clocks to the family of the Elector and later King Frederick August I, is apparent in the publication “Dresden - in der Geschichte der Uhrmacherei” (Dresden and the history of clock- making), which was published by Paul Pleissner on the occasion of the 50th anniversary of the Robert Pleissner company, Dresden 1924 (page 14): “When we look at the history of watchmaking in Dresden in the early 19th century, we first and foremost see ... Johann Heinrich Seyffert. ... In the field of watchmaking, Seyffert was a pioneer in his own right... . ‘Unofficial’ watchmaker to the court, consulted by Alexander von Humboldt who wanted to use Seyffert‘s chronometers as deck watches on his travels - there is little doubt that in his time Dresden had no watch- maker with better skills or higher ambitions than Seyffert. He was only interested in the most sophisticated watches that could be used for scien- tific purposes. To this end he always sought the perfect escapement and avoided any kind of ornamentation on the movement. He was in contact with the most famous French watchmakers such as the house of Breguet. The very few watches made by Seyffert that have survived .... are without exception extremely fine pieces that would not have been possible to create without the most extensive specialist training.” Described and illustrated in “100 Jahre Uhrenindustrie in Glashütte von 1845 bis 1945” Volume I, by Reinhard Meis, Munich 2011, page 28f. Johann Heinrich Seyffert,德國 Dresden — 德國很早期擺秒時鐘,出 自於德國Dresden極富非凡歷史價值的一個精密測量時計時代 39529 C: 2, 16 D: 2, 8 M: 2, 8, 41, 51 60.000 - 80.000 EUR 75.000 - 100.000 USD 600.000 - 800.000 HKD

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