German silver open faced lever watch with chain Circa 1880

Silver Glashütte gentlemen’s watch
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A German silver open faced pocket watch with chain, circa 1880. The ¾ plate movement with a Glashütte anchor escapement. White enamel dial with Roman hour numerals, an outer minute track, sunk subsidiary seconds at 6 o’clock and blued spade & whip hands. The plain case with later gold hinges, bow and winding crown, and a gold coat of arms applied on the back. Dial signed, case and movement with a matching number. Comes with a wooden box, certificate from the Glashütte Watch Museum dated August 30th, 2004, and a copy of the archive register dated June 27th, 1885.
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Diameter: 51 mm
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Weight: 112 g
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Length watch chain: 29.5 cm
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Weight watch chain: 31.5 g.
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Signed: A. Lange & Söhne Glashütte B/Dresden