Swiss gold chronograph made for the Indian market Circa 1900

Gold hunting cased watch with split-seconds chronograph
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A very fine and unusual Swiss 18K gold hunting cased split-seconds chronograph keyless lever pocket watch with a 30-minute register and 1/4th second diablotine made for the Indian market, circa 1900. Polished case, engraved crest and monogram on the front, the back monogrammed. Hinged gold cuvette inscribed Examed by Goldsmiths Company 112 Regent Street London.
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White enamel dial with radial Roman hours, outer minute track and outermost chronograph ring, subsidiary 30-minute register and quarter-second diablotine, blued steel spade hands. A frosted gilt movement, 17 jewels, counterpoised straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator, chronograph with visible work, start/stop and split-seconds push-pieces in the band.
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Diameter: 54 mm
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Signed: No name
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The feature known as a diablotine is a small subsidiary dial on a chronograph or independent centre seconds pocket watch, the hand of which moves in a jumping manner at intervals of 1/4 or 1/5th of a second. The term literally means ‘little devil’. The diablotine is halted when the chronograph or centre seconds is stopped and the fractions of a second can be read.