Swiss open-faced repeating cylinder pocket watch Circa 1820

Quarter repeating pocket watch
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A fine Swiss open-faced quarter repeating cylinder pocket watch, circa 1820. Frosted gilt movement, standing barrel, cylinder escapement, plain three armed brass balance, blued steel flat balance spring, index regulator, repeating on gongs activated by depressing the pendant. Silver dial with Roman numerals on a brushed reserve, outer minute divisions, engine-turned center, and original blued steel Breguet hands. Engine-turned case, bolt at 1 for locking the repeat.
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Diameter: 55 mm
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Signed: No name