Swiss gold chronometer made for the Hispanic market Circa 1865

Gold chronometer with spring footed detent escapement
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A very fine and large Swiss, 18 Carat gold, full hunter cased, pocket chronometer with spring footed detent chronometer escapement and helical balance spring, circa 1865. Large Detent Chronometer by Augustin Perret, Le Locle, retailed by French, Royal Exchange, London. Made for the Hispanic market. Engine turned covers with polished borders, the interiors with checkerboard engine turned decoration, reeded curved band. Hinged gold cuvette with engine turned border, hinged glazed gold rimmed cover to view the movement. Silver dial with black painted radial Roman numerals within engraved cartouches, subsidiary seconds, outer applied yellow gold foliate outer border, the centre with applied yellow gold decoration. Yellow gold and rose cut diamond set flower hands.
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A nickel silver movement, Geneva striping decoration, ring turned pillars, fusee with chain, Harrison’s maintaining power, 14 jewels, four in screwed gold chatons, the escape and balance wheel lower pivots with gold end plates, Earnshaw type spring footed detent escapement, cut bi metallic compensation balance with meantime and temperature adjustment screws, blued steel helical balance spring with inner and outer terminal curves, index regulator, diamond end stone. Movement signed by the retailer, the reverse of the dial scratch signed  Au. Perret.
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Diameter: 58 mm
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Signed: Augustin Perret  Le Locle