Swiss 18K gold open faced pocket watch with chronograph Circa 1900

Yellow gold chronograph by Breguet
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A Swiss yellow gold open faced keyless chronograph watch with a 60 minute register, circa 1900. This watch has a mechanical column wheel movement with lever escapement. Signed white enamel dial with radial Breguet style numerals, an outer 1/5th seconds track featuring Arabic numerals for five seconds, subsidiary dials for seconds at 6 and a 60 minute register at 12, and with spade hands. 18 Carat yellow gold polished case, accompanied by the original fitted box.
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Diameter: 50 mm
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Weight: 93 g
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Signed: Breguet