Swiss oval pendant watch made for the Chinese market Circa 1830

Gold cylinder with the portrait of a young couple
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A fine and rare Swiss, oval, gold and enamel key wind pendant watch, circa 1830.
Made for the Chinese market. An oval, polished, stepped bezel and outer reverse to a plain centre, sprung cuvette. Off set white enamel dial with Breguet numerals, outer minute and quarters, prominent scene of a young couple under mistletoe near a fountain with cupid looking on holding a white dove. Gilt hands. Oval, gilt movement, standing barrel with open bridges, cylinder escapement, plain three arm balance, flat hairspring, index regulator. Dial and cuvette signed.
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Dimensions: 59 x 50 mm
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Signed: Vaucher Freres  Genève
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The case is slightly scratched and the hands are partially replaced.
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Vaucher Frères are recorded as working in La Chaux-de-Fonds and Geneva between 1780 and 1830.