Swiss 20k gold decorative pocket watch with date Circa 1755

Gold decorative pocket watch with date
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A Swiss 20k gold decorative pocket watch with date, circa 1755, 20K yellow gold, varicoloured gold and enamel, open-face, key-winding, round-shaped, “Louis XV” pocket watch, with date of the month (exterior graduation with central index) Case back in varicoloured gold engraved in taille-douce (fine-cut) with a scene showing a young man near a cottage demonstrating his magic lantern to an audience; polychrome painting on enamel, by an unidentified workshop, probably Geneva, showing in the background the characters in a country landscape.
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Diameter: 47.5 mm
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Signed: Mazurier