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November 1917 ad for an Ingersoll "Radiolite" watch, one of the first watches mass marketed in the USA featuring a radium-illuminated dial. Radium was discovered by Marie and Pierre Curie in 1898 [1] and was soon combined with paint to make luminescent paint, which was applied to clocks, airplane instruments, and the like, to be able to read them in the dark.
The device having been made in a clear glass tube in early experiments uses induction to ionize the gases and the field made by ionized gases to energize ion tube coils. The effect is similar to pyroelectric fusion but instead of pyroelectric crystals stripping the electrons from hydrogen atoms it is a high voltage induced electromagnetic field ...
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The company entered the luxury market in 2005 when Timex's parent company acquired Swiss-based Vertime SA. Vertime is responsible for the design, manufacturing, and distribution of Swiss-made watches and jewelry for the Versace and Versus brands. [37] Timex USA's international holding company the Timex Group launched the TX Watch Company in ...
The Hamilton Watch Company was housed on a 13-acre (53,000 m 2) complex in Lancaster. Hamilton took possession of Aurora Watch Company's machinery shortly after incorporation. [citation needed] The first watch made under the Hamilton name was an 18-size 17-jewel pocket watch in 1893.
WALTHAM Premier pocket watch Vanguard Model 1908 16s 23j 10k Gold Filled circa 1943 Made in USA During World War II Waltham was an important contractor for the American military, producing timepieces for service personnel and timing devices for military ordinance, such as bombs and torpedoes, with the company's Waltham, Massachusetts factory ...
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