Swiss gold astronomical repeating pocket watch, Circa 1900

Pink gold astronomical pocket watch
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An extremely fine and extremely rare Swiss, 18K pink gold keyless pocket watch, circa 1900. Astronomic, minute-repeating with split-seconds chronograph, perpetual calendar, phases of the moon and lunar calendar. Accompanied by the Extract from the Archives. “For Burt H. Whiteley” Patek Philippe & Cie, Genève, made in 1900 and sold on November 14, 1906.

The back cover with red and blue champleve enamel monogram, chronograph button in the crown and split-seconds button between 10 and 11 o’clock, safety bolt at 11 o’clock. Hinged gold cuvette with engraved presentation inscription. White enamel dial, radial dauphine numerals, outer minute track, the outermost fifth of second chronograph divisions with red painted five-minute/seconds Arabic numerals, three subsidiary dials for days of the week, aperture for the phases of the moon with the lunar calendar, days of the week, months, and date in red, concentric with subsidiary seconds. Blued steel spade hands. A rhodium-plated movement, Geneva striping decoration, 39 jewels, straight-line counterpoised lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, index regulator, repeating on two gongs activated by a slide in the band. Dial, case and movement signed.
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Diameter: 53 mm
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Signed: Patek Philippe Genève
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The dedication on the cuvette of the present watch reads: Made for Burt H. Whiteley, Muncie, Ind. 1906, by Patek Philippe & Co., Geneva. Presented to his Doctor, Geo. R. Andrews. There are fewer than 50 triple-complication watches known and they are perhaps the most representative of Patek Philippe pocket watches.