Swiss 18K gold repeating key wound pocket watch Circa 1850

Gold open faced repeating pocket watch
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A Swiss 18 carat yellow gold quarter repeating key wound pocket watch, circa 1850. It features key winding from the back, a cock movement with a push button quarter repeater at the bezel, and a verge escapement. The guilloche gilt dial displays Arabic numerals on white enamel cartouches for the hours, an outer railway minute track, and Breguet style hands. The back is engraved with radiating decoration and includes a double metal cuvette.
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Diameter: 54 mm
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Weight: 106.9 g
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Signed: No name
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Wear, traces of repair and restoration.