Swiss 18 carat gold open faced lever chronograph Circa 1920

Gold lever chronograph
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A very fine chronograph with 30 minute counter made by Ulysse Nardin in Le Locle & Genève, Switzerland, circa 1920. The plain open faced case of this watch was crafted from 18 carat gold and is numbered. The silvered dial has Arabic hours, an outer fifth of a second track with Arabic five minute numerals, subsidiary seconds at 6 o’clock, a 30 minute counter at 12 and blued steel spade hands. The very fine movement has a lever escapement, fine adjustment and a Geneva striping finish.
Dial and cuvette signed.
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Diameter: 50 mm
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Weight: 77 g
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Signed: Ulysse Nardin Locle & Genève