Rare free-sprung Patent Union chronometer movement with up/down, circa 1870.
Half-plate fusee movement jewelled to the centre, the fusee with hard brass setting, the 16-size hollow-back frame stamped H.F (Henry Fletcher, Prescot) and the cock foot with 'Co' stamp. Patent Union Robin-type escapement with duplex-escape wheel, ruby shell and unlocking, the chronometer type impulse given to the radial jewel in the large roller. 8-turn helical balance-spring. Beautiful signed enamel dial in perfect condition with state-of-wind indication at 12, blued-steel hands. 45 mm diameter, 9 mm deep, not including centre arbor.
Arnold & Lewis, St Ann's Square, Manchester, successors to Isaac Simmons, one of the most important retailers in this wealthy English city, known to have marketed a wide range of good and often interesting watches.
George Morton, Market Place, Keighley, Yorkshire, Patent No 2432, October 1857, a Robin-type detached escapement with chronometer style (single) impulse. As subsequent development took place the watches are variously engraved, if at all: Morton's Patent; Mortons Patent Improved; Patent Chronometer; London Patent Chronometer; and finally Patent Union Chronometer, all numbered within the same sequence, the last known number being just over 3000. NB: see my recently published Horological Profile on Morton's Patent watches for full details, and in which this movement is featured - copies available on my website.
Seconds hand lacking its counterpoise, otherwise a very fine example of these rare watches. Not cleaned by me but will tick happily when wound.
Warning: Last items in stock!