Swiss 18K gold keyless watch with chronograph Circa 1908

Gold lever pocket chronograph by Paul Ditisheim
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A rare deck chronometer with chronograph and 30-minute register, circa 1908. Tested in Neuchatel with an extract from the chronometer database.
Extremely solid 18K gold case, probably made later. Signed and numbered original enamel dial with Breguet-style radial hours, outer minutes/seconds track with Arabic five minutes/seconds numerals, subsidiary dial for the seconds, 30-minute counter, and blued steel Breguet hands. Very fine Ankerchronometer with helical hairspring, wolf’s toothing, chronograph, and plate numbered.
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Diameter: 51 mm
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Weight: 111 g
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Signed: Paul Ditisheim
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Gold Ditisheim deck chronometers are extremely rare and are wanted collectors’ watches.