Swiss 18K gold repeating lever precision watch Circa 1875

Gold open faced quarter repeater
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A very fine Swiss 18-carat gold open faced quarter repeating lever pocket watch, circa 1875. High-quality precision lever movement, gold wheels, very rare fine adjusting device, wolf’s toothing, probably Louis Audemars calibre, repeating the hours and quarter hours, Geneva striping decoration. White enamel dial with black Roman hours, red Arabic minutes, also red subsidiary seconds, and gilt hands. Plain case. Case numbered and numbered under the dial.
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Diameter: 53 mm
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Weight: 115 g
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Signed: No name