Swiss 18 carat pink gold open faced pocket watch Circa 1900

Gold lever with split-seconds chronograph
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A very fine Swiss, keyless, 18K pink gold pocket watch with split-seconds chronograph, circa 1900. Rectangular pusher on the band for the split-seconds function. Hinged gold cuvette. White enamel dial with painted radial Roman numerals, outer minute and 1/5 seconds divisions with red Arabic 5-minute/seconds numerals, subsidiary seconds. Blued steel Spade hands. Rhodium-plated, Geneva striping decoration, 25 jewels, straight-line counterpoised lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, swan-neck micrometre regulator. Dial, case and movement signed.
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Diameter: 46 mm
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Signed: Tiffany & Co. Swiss