American Waltham Watch Company
Quick Summary
The American Waltham Watch Company, founded in 1854, was the first company in the United States to mass-produce watches using interchangeable parts. This innovation, pioneered by Aaron Lufkin Dennison, revolutionized watchmaking by adapting techniques used in firearm manufacturing. The company became a leading American maker of pocket watches and railroad chronometers, significantly contributing to the city of Waltham's industrial growth until production ceased in the 1950s.12
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