Swiss gold open faced keyless lever pocket watch Circa 1940

Gold gentlemen’s watch
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A Swiss 18 carat yellow gold open faced keyless pocket watch made by Cyma Watch Co. in Le Locle, circa 1940. The case back is polished featuring, in the upper left, an escutcheon with the monogram MP, the cuvette is further engraved Cyma à Marcel Pequegnat en souvenir d’une fidèle collaboration 1946. White enamel dial with suspended Arabic hour numerals, an outer minute track, subsidiary seconds at 6 o’clock and blued steel Breguet hands. Rhodium plated movement with a going barrel, gold screwed chatons, a straight line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, and polished steel index regulator. Signature on the dial, case and movement.
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Diameter: 48 mm
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Weight: 57 g
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Signed: Cyma Watch & Co.  Le Locle
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Accompanied by the original fitted box.
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Cyma Watch Co.
Cyma (in French, cime means the summit, the peak) was founded in Le Locle, Switzerland, in 1862 by the brothers Theodore and Abraham Schwob from La Chaux-de-Fonds. Theodore’s father in law was a salesman at Zenith and had some capital to support their enterprise. The company specialised in wrist alarm watches, of which the movements were made in house. Other companies also used these movements. In 1896, Cyma merged with Frédéric-Henri Sandoz’s Tavannes Watch Co.