Rare Swiss rose gold complicated lever watch Circa 1890

Rose gold lever with complications by Louis Bornand
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A very fine and rare Swiss 18 Carat rose gold open faced minute repeating keyless lever pocket watch with perpetual calendar, chronograph, moon phases, lunar calendar and non magnetic balance spring, circa 1890. Matte gilt movement, 32 jewels, counterpoised straight line lever escapement, cut bimetallic compensation balance, non magnetic Breguet balance spring by C.A. Paillard, index regulator, chronograph with visible polished steel work with co axial button in the crown, repeating on gongs with two polished steel hammers activated by a slide on the band. Gold hinged cuvette. White enamel dial with Roman numerals, outer minute track and outermost fifths of a second divisions with red Arabic five minute/seconds numerals, moon phase aperture with its age on the edge and combined with seconds, subsidiary dials for the months with four year cycle, days of the week and date, original black spade hands. Polished case. Movement and case numbered. Accompanied by the original numbered Louis Bornand fitted wooden box.
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Diameter: 55 mm
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Signed: Louis Bornand Genève
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Louis Bornand. The Bornand manufactory was in Geneva and was a father and son business. In 1886 an order was received from the Non Magnetic Watch Company for 34 watches including 12 complicated watches, these watches had non magnetic balance springs made by C.A. Paillard. This watch has a non magnetic balance spring and is likely to have been one of those ordered in 1886.