Swiss yellow gold and enamel open faced pocket watch Circa 1920

Gold and enamel watch by Vacheron Constantin
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A Swiss 18 carat yellow gold and enamel open faced pocket watch, circa 1920. The timepiece features a 16″ ligne movement with 18 jewels and a lever escapement. It has a silvered dial with a guilloché centre field, Breguet style numerals, an outer minute track, subsidiary seconds, and blued Breguet style hands. The 18k yellow gold case includes a plain cuvette marked with case number 215464. Additionally, the case, dial, and movement are all signed.
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Diameter: 46 mm
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Signed: Vacheron & Constantin Genève
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The case shows wear, scuffing, and surface scratches consistent with its age. There is wear to the enamel on the bow and stem, as well as a very small loss to the white enamel at the face of the stem. The case back has scuffs and superficial surface scratches, along with some indentations to the bezel nearest the acrylic glazing between 10 and 12. Additionally, there is some adhesive residue on the perimeter of the glazing. Inside the case, there are previous service markings. The dial exhibits heavy wear and dark, uneven surface markings throughout, with some light patina to the centre arbour and some dust. However, the movement is running.