Russian/Swiss silver and gold deck chronometer Circa 1900

Silver and gold keyless deck chronometer by August Ericsson
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A very fine and rare Russian/Swiss silver and gold open faced keyless deck chronometer, circa 1900. Frosted gilt movement, 17 jewels, Earnshaw type spring footed detent escapement, anibal-brass Guillaume compensation balance with gold temperature adjustment screws, blued steel Breguet balance spring with outer terminal curve, index regulator. Hinged silver cuvette. White enamel dial with bold Roman numerals, outer minute track, subsidiary seconds dial and original blued steel spade hands. Polished case, gold hinges. Dial and cuvette signed Aug. Ericsson, movement numbered on the pillar plate, case signed Ulysse Nardin.
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Diameter: 58 mm
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Signed: Aug. Ericsson – Ulysse Nardin Locle
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August Ericsson (1842 – circa 1910). Born in Sweden, he established an impressive business in St. Petersburg, Russia (circa 1875). Most of the marine chronometers supplied to the Imperial Navy were by him and they generally used Kullberg movements. One of his brothers, Bror, founded the Stockholm Watchmakers Association in 1884. One of August’s sons, Alexander, became a chronometer maker.