Russells Ltd, Manchester: A fine and rare 18ct. gold perpetual calendar minute repeating chronograph keyless hunter pocketwatch made by Nicole Nielson, London, in plain case with enamelled crest of ...... to the front cover and blue enamelled monogram of ...... to the rear cover, the white enamel Willis dial with Roman numerals, subsidiary dials for seconds combined with sector for the moon, day and date rings, elapsed minute ring combined with leap year cycle, sweep centre seconds operated by a button in the band, the frosted gilt three-quarter plate movement with bi-metallic balance, English lever escapement, typical Nielsen chronograph mechanism mounted on the top plate, repeating on two gongs operated by a slide in the band, signed by Russells and No.11725