Swiss gold watch made for Russian Imperial presentation Circa 1890

Gold minute repeating pocket watch
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A Swiss 18K gold and champlevé enamel minute repeating pocket watch, circa 1890. It was made for the Russian Imperial presentation. The back cover is decorated with the Russian Imperial arms in black and blue champlevé enamel and hinged gold cuvette. White enamel dial, radial Roman numerals, outer minute track, five-minute Arabic numerals, subsidiary dial for the seconds and blued steel spade hands. A matte gilt movement, 29 jewels, wolf’s tooth winding, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring with overcoil, index regulator, repeating on gongs activated by a slide on the band. Dial, case, cuvette and movement signed.
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Diameter: 53 mm
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Signed: Louis Audemars  Brassus & Genève
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Some hairlines on the dial.