German gold anker chronometer with chatelaine Circa 1880

Gold hunting cased pocket watch by M.Ort
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An interesting German Ankerchronometer with special hairspring, special lever and chronometer balance, circa 1880.
Engine turned 18 carat gold case with dome signed “M.Ort Nürnberg“. Inscribed movement quality: “Ankerhemmung, Chronometer-Unruh, waagerechtes Hebelsystem” (lever escapement, chronometer balance, horizontal levers), interesting Ankerchronometer movement, also signed, very big chronometer balance; special lever, hairspring probably Palladium. White enamel dial with Roman hours, sunk subsidiary dial with Arabic seconds and decorative gold hands with jewels. Rare and attractive gold chatelaine with lapis lazuli, length ca. 13 cm, ca. 17.5 g.
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Diameter: 50 mm
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Weight: 92 g
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Signed: M.Ort Nürnberg