Fine Swiss 18k rose gold open faced lever watch Circa 1890

Rose gold keyless lever watch
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A fine Swiss 18 carat rose gold open faced keyless lever pocket watch, circa 1890. Rhodium plated movement, 18 jewels, straight-line lever escapement, bimetallic balance, blued Breguet balance spring, micrometric regulator. White enamel dial with painted Roman numerals, outer minute track with Arabic 5 minutes indexes, subsidiary dial for the seconds and original rose gold English 1630 hands with small diamonds. Solid case, polished and brushed, engine turned decoration and a vacant cartouche to the back.
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Diameter: 47 mm
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Thickness: 15 mm
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Signed: No name