Fine Swiss 18K gold minute repeating keyless watch Circa 1900

Gold open faced lever pocket watch
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A fine  Swiss manual wind 18 carat gold minute repeating open faced pocket watch, circa 1900.
Frosted gilt movement, jewels, club-tooth lever escapement, cut-bimetallic compensation balance, blued balance spring, index regulator, repeating on gongs activated by a slide on the band by 2 hammers and 2 gongs.
White enamel dial with black Roman numerals, outer minute track with Arabic 5-minute numerals, subsidiary seconds at 6, and original decorative hands.
Polished 18K gold case and gold cuvette.
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Diameter: 51 mm
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Weight: 107 g
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Signed: No name
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Reference 0010000