Swiss deck watch with 40h power reserve indicator Circa 1940

Silver open faced deck watch by Ulysse Nardin
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A fine, heavy Swiss deck watch with 40 hour power reserve indicator, circa 1940.
Silver tiered and polished case. Signed enamel dial with radial Roman hours, auxiliary seconds, power reserve indicator and blued spade hands. Frosted gilt bridge movement with Guillaume gold screw compensation balance and cam type fine adjusting device.
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Diameter: 64 mm
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Weight: 224 g
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Signed: Ulysse Nardin Locle & Genève “Chronometre”