Swiss open faced keyless chronograph pocket watch Circa 1910

Gold lever chronograph by Ulysse Nardin
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A Swiss gold open faced keyless lever chronograph watch, circa 1910. This watch features a damascened nickel movement with wolf’s tooth winding, lever escapement, jewelled to the centre, blued steel overcoil, bimetallic compensation balance, and a partially visible chronograph mechanism on the backplate. It is signed by Ulysse Nardin, Locle, with the serial number 12992. The white enamel dial has red Arabic numerals, a black outer ring with blue Arabic numerals for minutes/chronograph seconds, sunken subsidiary seconds, blued steel hands, and signed Ulysse Nardin, Locle.
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The 18k gold case has a plain polished cover, a chronograph pusher through the pendant, a polished gold cuvette signed Ulysse Nardin, Locle & Genève, Grand Prix Paris, and is numbered on the case back with the Ulysse Nardin trademark stamp, all covers with Swiss hallmarks.
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Diameter: 56 mm
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Signed: Ulysse Nardin, Locle & Genève
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The movement is running smoothly, and the chronograph is functioning as expected, with the ability to start, stop, and reset. There are some scuffs and scratches on the bridges. The winding and handsetting operate smoothly. The dial has hairline cracks at the edge between 4 and 5 o’clock, running from the edge of the subsidiary seconds dial through the 5 o’clock numeral, and a hairline through the 4 o’clock numeral. There are further hairlines from the edge of the subsidiary seconds to 8 and 9 o’clock, and a chip in the centre of the subsidiary seconds dial. The case is polished with small scuffs and scratches and a minor pinhead-sized indentation to the right of the pendant. There is also some scratching at the case opening lips.