Swiss 18K gold repeater with split-seconds chronograph Circa 1890

Gold keyless lever open faced watch
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Swiss 18K yellow gold keyless minute repeating pocket watch with split-seconds chronograph, circa 1890. A solid, polished case, hinged gold cuvette, the case back with applied yellow gold HHB. White enamel dial with printed Breguet numerals, outer minute and chronograph divisions with 5-minute red Arabic markers, sunk subsidiary seconds dial, 30-minute register and Blued steel spade hands. Movement with Geneva striping decoration, 26 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, repeating on gongs with hammers. Dial and movement are signed and the case is numbered.
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Thickness: 14 mm
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Diameter: 50 mm
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Signed: C. H. Meylan  Brassus, Swiss
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The case is slightly scratched.