The American Clock and Watch Museum in Bristol, Connecticut, is a specialized museum devoted to the history, science, and art of timekeeping, with a particular strength in American clocks and industrially made nineteenth- and early twentieth-century timepieces. Founded in 1952 as the Bristol Clock Museum, it stands in a historic center of American clockmaking associated with the Ingraham and Sessions companies. Its exhibits emphasize Eli Terry’s early nineteenth-century manufacturing methods, which shifted clockmaking from individually fitted handmade parts to machine-made interchangeable parts. That change, alongside advances in firearms manufacture in Connecticut, helped drive the Industrial Revolution in the United States. The museum also maintains an important horological research library.