German pink gold open faced keyless chronograph Circa 1899

Very heavy gold hunting cased pocket watch
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A German pink gold open faced keyless chronograph watch with registers, circa 1899. Gilt three-quarter plate jewelled lever movement.
White enamel dial, Roman numerals, outer minute track with 1/5 seconds divisions, subsidiary dials for constant seconds and 30-minute register, pink gold case and cuvette, engine turned back, case dial and movement signed, case and movement numbered.
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Diameter: 53 mm
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Signed:  A. Lange & Söhne Glashütte
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Martin Huber, Die Uhren von A. Lange & Söhne Glashütte Sachsen. 1988, p. 172.

Accompanied by A. Lange & Sönhe certificate and presentation case.