Swiss repeating split seconds chronograph watch Circa 1920

Unsigned 18 carat gold open faced watch with register
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A Swiss gold open faced split second minute repeating keyless lever chronograph watch with a 30 minute recorder, circa 1920. The watch features a mechanical movement with a lever escapement. It has a white enamel dial adorned with radial Breguet style hour markers, an outer track for minutes and seconds with red Arabic numerals indicating five minutes/seconds intervals, subsidiary seconds dial at 6 o’clock, a 30 minute register at 12 o’clock, split seconds hands, and original pear shaped hands. The 18 carat pink gold case features a cuvette and a monogrammed hinged case back.
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Diameter: 47 mm
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Signed: No name
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The case is in overall very good condition, with light surface scratches throughout. It appears to have been lightly polished at some point. The enamel dial is in good condition, though it has hairline cracks at the 9, 11, and 12 o’clock positions. The split-seconds chronograph and minute-repeating functions are operational. However, the movement is currently not running.