German fine 18 carat gold keyless Glashütte watch Circa 1892

Gold hunting cased pocket watch 
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A very fine and rare, hunting cased, keyless, 18 Carat pink gold, 1a quality pocket watch with chronograph, circa 1892. Solid case, polished, front with monogram JT, hinged gold cuvette. White enamel dial with painted Arabic numerals, outer minute track, outermost 1/5th seconds chronograph divisions, subsidiary seconds dial. Pink gold spade hands. Frosted gilt movement, Glashütte 3/4 plate, 21 jewels with 2 in screwed gold châtons, straight line gold lever escapement, cut bimetallic compensation balance, anti magnetic Breguet balance spring, diamond endstone, swan neck, micrometer regulator, engraved balance bridge, visible chronograph works with gold wheels. Dial and case signed, case and movement numbered.
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Diameter: 55 mm
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Signed: A. Lange & Söhne Glashütte B/Dresden
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Unlike other watches whose origins are long forgotten, the provenance of this watch is well documented by the family and the A. Lange & Söhne Company: The watch was given as a wedding gift to Mr. Joseph Schünhofen Theurer of Chicago by his cousin, the father of Count Claus Schenk von Stauffenberg. The Theurers were one of the earliest families in Chicago (circa 1840) and founded the first brewery there. Count Claus Schenk von Stauffenberg was the leader of the German officer’s plot against Adolf Hitler and he planted the ill fated briefcase bomb in July 1944. Hitler survived the blast; the Nazis captured and executed von Stauffenberg the same day.