Swiss gold watch with “Bras en l’air” indication Circa 1820

Gold open faced verge watch 
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An exquisite and rare pocket watch with “Bras en l’air”-indication “Roman soldier”, circa 1820.
An 18 carat gold case, enamel dial, left half with Arabic minutes, right half with Arabic hours, applied gilt figure. Full plate movement, keywind, chain/fusee, verge escapement, three-arm brass balance. This is an extremely rare pocket watch that shows the time by the press of a button. The raised arms of the figure are used as hour and minute hands.
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Diameter: 55 mm
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Weight: 124 g
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Signed: No Name