Swiss/French 18K pink gold keyless pocket watch Circa 1900

Gold watch with one-button chronograph and register
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Swiss/French 18K pink gold keyless pocket watch with one-button chronograph and register, circa 1900. A polished case, hinged back and bezel, back engraved with monogram “KMC,” hinged engraved gold cuvette. White enamel dial with printed Arabic numerals, outer minute track with Arabic five-minute markers and 1/5th seconds scale, subsidiary seconds, 30-minute register dials and blued steel spade hands. A rhodium-plated movement, Geneva striping decoration, 12 jewels, straight-line lever escapement, cut bimetallic compensation balance with blued steel flat balance spring, index regulator. Signed on the cuvette, numbered on the movement.
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Diameter: 50 mm
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Signed: Haas Neveux & Co  Genève/Paris