Illinois | Year. 1927Illinois Watch Company, established in 1870 in Springfield, Illinois, was a leading force in American horology during the early 20th century. Renowned for their innovation, craftsmanship, and distinctive Art Deco designs, Illinois produced a wide range of pocket and wristwatches that set standards for accuracy and style. Their timepieces were especially popular during the 1920s and 1930s, and the brands legacy continues to be celebrated by collectors