Swiss gold watch with pivoted detent escapement Circa 1900

Gold open faced pocket watch
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An unique and well-known Alexandre Hüning Observatory chronometer, circa 1900. Special quality with construction features similar to the Potter chronometer, tested at the Genèva Observatory, with chronometer test certificate. An 18K gold, à-goutte-case, engine turned, signed, case and movement matching numbers, unique chronometer movement with extraordinary construction features, pivoted detent escapement, similar to the A. Potter chronometer, but with finer construction features and additional special brake/ protection device limiting the maximum of oscillation, fine adjusting device, wolf’s toothing, screwed minute wheel gold chaton, original enamel dial, blued steel hands, good condition, absolute rare.
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Diameter: 54 mm
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Weight: 125 g
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Signed: Alexandre Hüning  Genève