Fine Swiss pocket watch with split-seconds chronograph Circa 1920

Fine and rare large keyless Swiss pocket watch with split-seconds chronograph
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A fine and rare steel keyless Swiss pocket watch with a split-seconds chronograph. Made by Ulysse Nardin, Locle Switzerland, circa 1920
Four body case with bassine et filets, polished, co axial button in the crown for the start/stop and between 11 and 12 o’clock for the split-seconds and hinged steel cuvette.
White dial with painted black Breguet numerals, outer minutes/seconds track with every five Arabic markers and subsidiary dials for the seconds and 30-minute register. Blued steel Breguet hands.
Rhodium-plated movement with Geneva Striping decoration, straight-line lever escapement, cut bimetallic balance, blued steel Breguet balance spring and micro meter index regulator.
Dial, case and movement signed.
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Diameter: 54 mm
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Signed: Ulysse Nardin, Locle Switzerland