Swiss stainless steel staybrite chronograph pocket watch Circa 1940

Stainless Steel watch with register, tachometer and telemeter
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An extremely rare Swiss stainless steel staybrite pocket watch, circa 1940. With a co-axial button chronograph, register, tachometer and telemeter. Enamel dial with painted Arabic numerals and baton indexes, outer minute and 1/5th second divisions with Arabic five minute/ second markers, outermost red tachometer and black telemeter scales, subsidiary dials for the seconds at 6 and the 30-minute register at 12. Blued steel feuille hands. Rhodium-plated movement, 17 jewels, straight-line lever escapement, monometallic balance, self-compensating Breguet balance spring, index regulator. Dial, case and movement signed.
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Thickness: 11 mm
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Diameter: 49 mm
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Signed: Rolex  Genève
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The movement is slightly scratched.
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Rolex is a luxury watch brand that was founded in 1905 by Hans Wilsdorf and Alfred Davis in London, England. Originally called Wilsdorf & Davis, the company later changed its name to Rolex in 1908. Rolex has a rich history of innovation and achievement in the watchmaking industry. In 1910, it was the first watch company to receive the Swiss Certificate of Chronometric Precision, which is awarded to timepieces that pass a series of rigorous tests for accuracy and reliability. In 1926, Rolex introduced the Oyster, the world’s first waterproof wristwatch. This was followed by the introduction of the Perpetual rotor, which automatically winds the watch’s mainspring as the wearer moves their wrist. Over the years, Rolex has continued to innovate and push the boundaries of watchmaking technology. Today, Rolex is one of the most recognized and respected luxury watch brands in the world, known for its precision, durability and timeless style.