Fine Swiss gilt metal skeletonized keyless watch Circa 1980

Gilt metal skeletonized dress watch
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A fine and thin Swiss gilt metal skeletonized keyless lever dress watch made by Chs. Tissot & Fils in Le Locle, circa 1980.
The polished case is glazed on both sides, has a stepped bezel and reeded band. Annular white enamel dial with Breguet numerals, outer minute divisions and black Breguet hands.
A very fine gilt movement with skeletonized and engraved plates, straight line lever escapement, monometallic balance, self compensating flat balance spring and shock absorber. The crystal is signed, case numbered.
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Diameter: 52 mm
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Signed: Chs. Tissot & Fils le Locle
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Tissot was originally founded by, father and son, Charles-Félicien Tissot and Charles-Émile Tissot in 1853 in Le Locle, Switzerland, and is still based there today. 1853 Was a monumental year for Tissot for the company introduced the first pocket watch featuring two time zones. The first mass produced pocket watch was also launched in the same year. It was an impressive start and Tissot has continued to innovate.