Fine, heavy Swiss gold hunting cased keyless lever Circa 1890

Gold lever with independent and jump fifth seconds by Grandjean
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Fine and heavy Swiss 18 carat gold two train hunting cased keyless lever watch with independent and jump fifth seconds, circa 1890. Nickel finished two train lever movement, bimetallic compensation balance. Gold cuvette.
White enamel dial with Roman numerals, outer calibrated fifth seconds ring, two subsidiary dials for constant seconds and jump fifth seconds. Engine turned case, independent seconds start/stop in the band, monogrammed plaque to the front, hinged back. Case, dial and movement signed.
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Diameter: 56 mm
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Signed: H. Grandjean & Co. Locle