Equally rare Danish gold minute repeating chronograph Circa 1875

Gold lever with moon phases and perpetual calendar 
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An equally rare, massive and heavy Danish, 18K pink gold minute repeating hunting cased pocket watch, circa 1875. With perpetual calendar, chronograph, instantaneous 30-minute register and moon phases. Accompanied by the copy of the Jules Jurgensen archive. A polished band, polished covers, the front cover with engraved coat of arms. Button at 12 for the start/ stop and return-to-zero functions of the chronograph and a hinged gold cuvette.
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White enamel dial, radial Roman numerals, outer minute track concentric with fifths of a second division, subsidiary dials for the days of the week, date, and months of the four-year cycle. Aperture for the moon phases with lunar calendar combined with seconds and blued steel Breguet hands. Matte gilt three-quarter-plate movement, 23 jewels, lateral lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, index regulator, repeating on gongs activated by a slide on the band. Case and cuvette signed, case numbered.
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Diameter: 67 mm
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Thickness: 22 mm
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Weight: 264 g
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Signed: Jules Jurgsensen  Copenhagen
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This impressive perpetual calendar minute repeating chronograph is one of the largest ever produced by the firm. Weighing an amazing 264 grams, it is interesting to note that according to the archives it was ordered by the Consulate of the United States in Basel for CHF 2316.30.