Fine Swiss platinum and rock crystal keyless lever watch Circa 1920

Platinum and rock crystal dress watch by Cartier
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A very fine and rare Swiss platinum and rock crystal open faced keyless lever dress watch, circa 1920. A rhodium-plated movement by European Watch and Clock Co, Inc. with Geneva Striping decoration, 19 jewels, straight-line lever escapement, a cut bimetallic compensation balance with eight adjustments, blued steel balance spring and index regulator. A small silver dial with engine-turned vertical lines, triangular hour indexes on the outer minute ring and blued steel Breguet hands. The rock crystal case with a faceted border on both sides, a platinum band and a triangular bow. Dial signed by the retailer, movement numbered and signed by the watchmaker, the case punch numbered. Comes with a fitted presentation box.
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Diameter: 45 mm
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Signed: Cartier France
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Cartier was founded by Louis-François Cartier. He was born in 1810. In 1847 Louis-François was able to take over the jewellery shop of his teacher Adolphe Picard at 31 Rue de Montorgueil, Paris. It is a French jewellery house specializing in making very luxurious jewellery such as rings, bracelets, earrings, necklaces and watches.