Swiss lever chronograph with 30 minute register Circa 1925

Gunmetal and gold chronograph by Ulysse Nardin
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A fine Swiss gunmetal and gold open faced keyless lever chronograph pocket watch with 30 minute register, circa 1925. Rhodium plated movement, Geneva Striping decoration, 21 jewels, straight- line lever escapement, mono-metallic balance with selfcompensating blued steel Breguet balance spring, spring loaded micrometer regulator. Hinged gunmetal cuvette. Matte silver dial with black painted Breguet numerals, outer minutes and fifths of a second divisions with five minute Arabic numerals, subsidiary seconds at 6, 30 minute register at 12 o’clock, original blued steel spade hands. Polsihed case, gold hinges, inner bezel, bow and thumb piece. Dial, case and movement signed, case numbered.
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Diameter: 51 mm
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Signed: Ulysse Nardin Locle Suisse