| A rare 19th Century English lever chronograph with regulator dial by Nicole Nielsen in a gold open face case. Gilt three quarter plate keyless movement with steel Nicole patent winding work. Centre seconds flyback chronograph work under the dial. Engraved cock with polished steel
regulator, compensation balance with blue steel overcoil hairspring. English table roller lever escapement, escape and lever pivots with endstones. Signed and white enamel regulator dial with the lower subsidiary for continuous seconds, the upper showing the hours in Roman numerals. The minutes and centre seconds flyback chronograph are shown around the edge in Arabic numerals, blue steel hands. Slim 18 carat open face case, hinged gold
back with engraved monogram, gold cuvette. Maker's mark "AN" in a rectangle and number corresponding to that on the movement.
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