Danish gold hunting cased centre seconds lever Circa 1860

Lever with independent centre seconds and 1/5th second diablotine 
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Very fine Danish 18 carat gold hunting cased pocket watch, circa 1860. Nickel movement, straight-line lever escapement, cut bimetallic compensation balance, Breguet balance spring, tandem winding, double train independent centre seconds and 1/5th second diablotine activated by a push-piece in the band. White enamel dial with Roman hours, outer minutes and seconds track with Arabic numerals. Plain case with ribbed band. Dial signed, case and movement signed and numbered.
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Diameter: 52 mm
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Signed: Jules Jürgensen Copenhagen
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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.