The company was originally named the American Horological Company and was made up of Dennison, Howard, Davis, and Samuel Curtis. The company name was changed to Warren Manufacturing Company and released its first watch on the market in 1853. The first 17 watches, which ran for 8 days, and were marked "Howard, Davis & Dennison", were distributed among company officials. Number 1, given to Howard, is now at the Smithsonian Institution. Numbers 18 to 100 were named "Warren, Boston" and the following 800 "Samuel Curtis", after the financial backer of the company. A few, marked "Fellows & Schell", sold for $40. January 1853 saw the introduction of the "P.S. Bartlett" watch, named for early employee Patten Sargent Bartlett. The company also became known as The Boston Watch Company starting in 1853.