Rare German 18k gold so called ‘goutte case’ watch Circa 1870

Gold open faced pocket watch
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A very early and rare A. Lange & Söhne man’s pocket watch of best quality 1A, delivered to Tiffany New York, circa 1870. An 18K gold, original case, rare case design, so called cut-hunter, à goutte case, inside engraved dedication, case and movement with matching number 7688, glazed movement, A. Lange & Söhne precision lever movement of best quality 1A with screwed gold chatons and diamond endstone, hand engraved cock, gold lever, gold escape wheel, very beautiful preserved enamel dial with red minutes, blued steel hands, in working order and in good condition, back with elaborate engraved monogram, case, movement and dial signed Tiffany.
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Diameter: 51 mm
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Weight: 120 g
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Signed:  Tiffany  New York