Swiss 18 carat gold engraved open faced cylinder Circa 1830

An 18 carat gold key wind open faced pocket watch, circa 1830. Gilt Swiss bar cylinder movement, 3 arm balance. White enamel dial, black Roman numerals, black outer minute track, subsidiary seconds at 6 and blued steel hands. Polished hinged case, engraved reverse depicting two mounted soldiers fleeing battle. Cuvette and movement signed, case stamped ‘J.G.’
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Diameter: 45 mm
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Signed: Czapek i Spólka W Genewie