Austrian gilt, enamel and stone set verge watch Circa 1765

Gilded watch decorated with stones and enamel
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An early Austrian gilded brass, enamel and stone set open faced pocket watch, circa 1750-1780. The movement with a verge escapement. White enamel dial with Roman hours, an outer minute track, outermost Arabic five minute numerals and gilt hands. Both bezels set with stones, the case back decorated with polychrome enamel. Movement signed and numbered.
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Diameter: 45 mm
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Weight: 80.5 g
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Signed: Heinrich Rost Salzburg
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The minute hand is missing.