Lot No. 56 (92nd Auction)
Joseph Thaddäus Winnerl, No. 237, Height 1460 mm, circa 1850

A remarkable precision regulator of museum quality with 45 days power reserve and Winnerl's up side down pendulum lever escapement
Case: mahogany, removeable, with two glazed windows for dial and pendulum. Dial: silvered, signed, numbered, radial Roman numerals, auxiliary seconds, blued Breguet hands. Movm.: circular brass plate movement, laquered, conical movement pillars, weight driven, Winnerl's up side down pendulum lever escapement with sapphire pallets, heavy wooden pendulum rod and -brass bob, adjusting device.

Joseph Thaddaeus Winnerl (1799-1886)
Joseph Thaddaeus Winnerl was born on January 15, 1799 in Mureck in Styria; he apprenticed with Georg Fidel Schmidt in Graz and was freed in 1816. From 1823 on Winnerl worked in Wroclaw, later with Kessels in Altona and then with Urban Juergensen in Copenhagen. In 1829 he went to Paris, where he worked for Breguet et fils and others, before opening his own workshop in 1832 to produce marine chronometers, precision pocket watches and pendulum clocks. From 1835 to 1841 Ferdinand Adolph Lange worked for Winnerl. Winnerl specialised in marine chronometers and produced several timekeepers of ourstanding quality. In 1844 the Société d'encouragement described and illustrated his pendulum clocks and seconds counters and Winnerl’s publications on isochronism of the pendulum caused by the force of the suspension spring. In 1868 Winnerl created the first pendulum clock with an electric contact which was placed in the basement of the observatory in Paris - it is still there today. He used Thomas Reid’s escapement, which he modified so finely that it produced the most perfect results. Winnerl also worked on improving lever escapements, for example in large clocks; he was honoured with a number of awards for his creations and in 1844 he was made a Chevalier de la Légion d’Honneur, in 1855 an Officier. Winnerl retired from business in 1870 and sold his workshop to the watchmaker Bernard Callier.
Employees and apprentices:
Ferdinand Adolph Lange 1835 to 1840
Victor Gannery around 1838
Simon Vissière around 1840
Moritz Krille around 1845
Julien Hilaire Rodanet 1826 to 1837
Henri Robert Ekegrèn around 1850
Théodore-Marie Leroy
Estimate  42,000 - 60,000 €

Price Realised  60,800 €
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