Rare Swiss gunmetal lever tourbillon pocket watch Circa 1905

Gunmetal one minute tourbillon
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A rare Swiss open faced lever pocket watch with tourbillon, circa 1905. 4/5 Plate movement, a piston tooth lever escapement, one minute tourbillon according to patent No. 34394 by Edouard Fallet and screw compensation balance. White enamel dial with Roman hours, outer minute divisions, sunk subsidiary seconds at 6 o’clock and spade & whip hands. The plain gunmetal case has a gold crown, hinge, bracket and tab. Dial signed Chronomètre Tourbillon, case numbered, movement numbered and signed Fureur Bte. SGDG Swiss.
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Diameter: 53 mm|
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Weight: 100 g
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Signed: Fureur Bte. SGDG Swiss
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In 1905, the patent for this type of watch was filed by Louis and Edouard Fallet Fils, St. Imier, Switzerland and was given the number 34394. By placing the tourbillon on an axis in the center of the watch, Edouard circumvented patent No. 30754 (June 11, 1904, in Switzerland) from Frenchman Paul Loichot, Charquemont, Doubs, in which the fact that the bogie was visible on the dial side was part of the patent claim.