Important Danish gold quarter repeating pocket watch Circa 1855

Gold watch with spring detent Chronometer escapement
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Highly important, exquisitely made Danish 18K rose gold quarter repeating pocket watch, circa 1855. Chronometer with an Earnshaw-type spring detent Chronometer escapement. A massive, engine-turned case, gold hinged cuvette engraved with Danish Coat of Arms and “Urban Jurgensens Sonner No 859”, with winding aperture, slide on the band at 1 o’clock for locking the repeating. Silver dial, radial champlevé Roman numerals on a brushed chapter ring, outer minute divisions, outermost Arabic 10-minute numerals in square reserves within an engine-turned border, matte engine turned centre, offset large subsidiary seconds ring at 6 o’clock, signed ”Urban Jurgensebs Sonner” and blued steel Breguet hands.
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The movement was made from a Houriet garde-temps, frosted gilt, three-quarter plate, with cylindrical pillars secured by screws, the back plate recessed for the barrel secured by a bridge, the fusee with chain and Harrison’s maintaining power, gold train, a winding square surrounded by a dust pipe fixed on the top plate. Earnshaw-type spring detent escapement, two-arm compensation balance with two wedged sliding weights, the rim with graduation for easy temperature adjustment, two-timing screws Offset solid balance clock helical balance spring. Dial, case and movement signed.
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Diameter: 60 mm
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Signed: Urban Jürgensen  Copenhagen
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This is the only quarter repeating watch known in the Chronometer series. An outstanding example of the watches for THE KING to buy, intended for him to present as a gift of merit on his king’s travels.