The company's historic 19th-century manufacturing facilities in Waltham, Massachusetts have been preserved as the American Waltham Watch Company Historic District. and the American Watch Co., was a company that produced about 40 million watches, clocks, speedometers, compasses, time delay fuses, and other precision instruments in the United States of America between 18. The Waltham Watch Company, also known as the American Waltham Watch Co.