Swiss gold chronograph watch with tachy scale Circa 1900

Gold hunting cased pocket watch by Zenith
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A rare Swiss hunting cased pocket watch with chronograph, circa 1900. The watch has an 18 carat gold case with a signed gold dome and a pusher for the chronograph at 6. Enamel dial with Arabic numerals, auxiliary seconds, 30 min counter, tachy scale, centre chronograph hand, and spade hands. 2/3 plate movement, chatoned, frosted, gilt, finely ground and bevelled chronograph steel parts, ratchet wheel, screw compensation balance, cam type fine adjusting device.
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Diameter: 52 mm
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Weight: 103 g
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Signed: Zenith, Le Locle