Swiss silver deck chronometer of the Royal Navy Circa 1920

Open faced deck chronometer watch by Ulysse Nardin 
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A Swiss deck chronometer of the Royal Navy in a mahogany box, circa 1920.
Silver polished “broad arrow” case with military engraving “H.S. 2” and screw back. Signed enamel dial with radial Roman numerals, centre seconds and blued spade hands. Bridge movement, frosted, gilt, with gold screw compensation balance and index spring fine adjusting device.
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Diameter: 56 mm
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Weight: 160 g
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Signed: Ulysse Nardin Locle