German gold chronometer hunting cased watch Circa 1888

Gold full hunter by A. Lange & Söhne
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An important, extremely rare pocket chronometer with spring detent escapement manufactured in quality 1A, circa 1888. Sold in 1888 for the sum of 875 Marks, formerly with rating certificate of the Deutsche Seewarte Hamburg.
An 18-carat rose gold monogrammed case with glazed movement. Signed enamel dial with Roman hours, sunk subsidiary dial for the constant seconds, and spade hands. Signed 2/3 plate movement, anti-galop system, chain fusee, and gold screw compensation balance.
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Diameter: 54 mm
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Weight: 154 g
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Signed:  A. Lange & Söhne Glashütte B/Dresden,
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This is one of only 34 ever produced pocket chronometers by Lange & Söhne with spring detent escapement and chain/fuse. It is also fitted with intricacies such as an anti-galloping device and a blued cylindrical hairspring a rare and remarkable piece in excellent condition.