Jules Jürgensen. A fine and rare 18K gold hunter case minute repeating keyless pocket chronometerSigned Jules Jürgensen, Copenhagen, no. 13129, circa 1873 Cal. 19''', with nickel-finished fully jewelled movement, pivoted detent escapement, bimetallic compensation balance with gold screws, patented bow setting, repeating on two polished steel hammers onto two gongs, glazed dust cover, the white enamel dial with Roman numerals, blued steel moon-style hands, subsdiariy seconds, in heavy engine-turned case with repeating slide in the band, case, dial and movement signed54 mm. diam.