Swiss impressively large and elegant pocket watch Circa 1820

Open faced pocket watch with cylinder escapement
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A Swiss, museum like, large and elegant pocket watch in the style of Breguet with an original Morocco case, circa 1820.
Silver and rose gold engine turned case, the back monogrammed MG with blue enamel. Gold cuvette. Silver engine turned dial, Roman numerals, blued steel hands, signed Vaucher Frères. Signed and numbered key wind bridge movement with a large three arm balance and cylinder escapement.
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Diameter: 72  mm
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Weight: 191 g
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Signed: Vaucher Frères
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Alfred Vaucher founded Vaucher Frères à Fleurier at Fleurier. After he died in 1840, the sons Alfred, Edouard and James-Henri continued the business and specialized on dealing in watches for the Chinese market. In 1843 they opened a branch in Kanton and another in Shanghai. Also, a ship’s chronometer dated around 1860 and signed “Vaucher Frères” is known.