Swiss 18K pink gold astronomical pocket watch Circa 1890

Gold complicated pocket watch
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A very fine Swiss 18K pink gold astronomical keyless pocket watch, circa 1890. With moon phase, perpetual calendar, minute repeating, and split-second chronograph.
A massive, polished case with a hinged gold cuvette. White enamel dial with radial Arabic numerals, outer red Arabic minute and seconds ring, sunk subsidiary dials for the days of the week, the month, and the date and subsidiary seconds with inner moon phase aperture and blued steel spade hands. Nickel-plated movement, Geneva striping decoration, 39 jewels, counterpoised straight-line lever escapement, cut bimetallic balance, blued steel Breguet balance spring with swan neck micrometric index. Repeating on gongs with slide in the band. Split seconds chronograph with visible work, button on the winding crown and push-piece in the band. Signed on movement, case numbered.
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Diameter: 51 mm
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Signed: C.H. Meylan  Swiss