French silver verge watch with bras en l’air automaton Circa 1790

Silver open faced verge watch
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An extremely rare and technically very interesting French museum like silver open faced verge pocket watch with bras en l’air time indication, circa 1790. Gilt verge movement. White enamel dial with extremely rare bras en l’air time indication, a polychrome enamel scene in the center, by pressing the pendant the two central hands move to the position of the current time, on the left side a minute track with Arabic numerals and on the right Arabic hours. Plain case.
Dial signed, movement signed and numbered.
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Diameter: 53.5 mm
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Weight: 97 g
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Signed: Vaucher Frères Paris
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Vaucher Frères was a watch manufacturer founded by Claude and César Vaucher based in Fleurier, Switzerland and Canton, Guangdong, China, operating from 1800 to 1866.
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Bras en l’air is a clock or watch in which the time is indicated by a human figure with moving arms that indicate the hours on the left and the minutes on the right on a vertical scale.