German rose gold open faced lever dress watch Circa 1910

Rose gold keyless dress watch by A. Lange & Söhne
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A fine German 18 carat rose gold open faced keyless lever dress watch, circa 1910. Quality 1A 3/4 plate gilt finished fully jewelled lever movement with screwed gold chatons, blued screws, finely hand engraved balance bridge, bimetallic compensation balance with gold screws, gold lever and escape wheel, micrometer regulator, Gold cuvette. Engine turned gold dial with Arabic numerals on blank chapter ring, blued steel moon style hands and subsidiary seconds. Plain Royal case, hinged back. Case, dial and movement signed, cuvette numbered.
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Diameter: 51.5 mm
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Signed: A. Lange & Söhne Glashütte I/SA