Waltham

The Waltham Watch Company was founded in 1850 in Roxbury, Massachusetts by Aaron Lufkin Dennison, Edward Howard, and David Davis. Initially named the American Horologe Company, then Warren Manufacturing Company and Boston Watch Company, the firm moved to Waltham, Massachusetts in 1854. Dennison's revolutionary vision was to apply mass production techniques to watchmaking, creating interchangeable parts and precision machinery that would make quality timepieces affordable. The company renamed to American Waltham Watch Company in 1885. During the Civil War, Waltham's affordable 'William Ellery' model became a favorite among Union soldiers. Post-war, the company became the primary supplier of railroad chronometers across North America. Waltham's innovations inspired Henry Ford's assembly line concept. The company produced watches for explorers including Shackleton's South Pole expedition and Peary's North Pole conquest. American production ceased in 1957, with operations continuing through the Swiss subsidiary Waltham International SA, established in 1954.