Swiss gold granulation watch with jumping hours Circa 1830

Gold granulation and enamel decorated watch
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A very fine and rare Swiss gold granulation decorated, enamel and gem-set jump-hour open faced verge pocket watch, circa 1830. Matte gilt full plate movement, Ø 34 mm, fusee and chain, verge escapement, brass balance with flat balance spring, continental clock with polished steel endplate, silvered regulation dial. Hinged gilt metal cuvette. Engine-turned silver dial with an eccentric chapter ring for the minutes, subsidiary seconds, an aperture for the date and blued steel lozenge hand. The case is entirely decorated with a granulation technique, the back set with 16 faceted oval amethysts and a central octagonal polychrome enamel panel decorated with the portrait of a lady representing flora. Case numbered.
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Diameter: 44 mm
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Signed: No name
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Granulation is a technique using tiny beads of gold, that was employed – and probably invented – by the ancient Etruscans, who created jewelry which was highly sought-after throughout the Mediterranean. Most watches using this method employed a technique in which ready-to-apply gold beads were soldered onto the surface, thereby forming the desired pattern.