Early Swiss 18 carat gold open faced gentlemen’s watch Circa 1890

Gold lever pocket watch by CH.F. Tissot & Son
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An early Swiss 18 carat gold open faced gentlemen’s pocket watch with special hand-setting mechanism, circa 1890. The movement with a lever escapement. White enamel dial with Roman hour numerals, outer minute divisions, sunk subsidiary seconds at 6 o’clock and blued moon hands. A plain case. Dial signed, case numbered.
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Diameter: 54 mm
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Weight: 118.5 g
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Signed: CH.F. Tissot & Son Locle
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Founded in Le Locle, Switzerland, in 1853 by Charles Felicien Tissot, who was later joined by his son Charles Emile Tissot, the firm Ch. F. Tissot became Chs. F. Tosson & Fils in 1880. Still based in Le Locle, the firm would later take the name of Tissot.