Swiss white gold and diamond chronometre pocket watch Circa 1920

White gold lever dress watch 
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A Swiss 18K white gold and diamond, keyless dress-pocket chronometre watch, circa 1920. Satine silver dial with 11 baguette diamond indexes, outer minute divisions, subsidiary seconds dial and white gold baton hands. Rhodium plated movement, 18 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Dial, case and movement signed.
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Diameter: 43 mm
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Signed: Zenith  Swiss
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The dial is spotted.
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Zenith SA is a Swiss luxury watchmaker. The company was founded in 1865 by Georges Favre-Jacot in Le Locle in the canton of Neuchâtel and is one of the oldest continuously operating watchmakers. Favre-Jacot invented the concept of ‘in-house’ movements, believing that only through control of the entire watchmaking process, perfection could be achieved. Zenith was purchased by LVMH (Moët Hennessy Louis Vuitton) in November 1999, becoming one of several brands in its watch and jewellery division which includes TAG Heuer and Hublot.