The American Clock & Watch Museum (ACWM), located in Bristol, Connecticut, is one of a very few museums in the United States dedicated solely to horology, which is the history, science and art of timekeeping and timekeepers. Located in the heart of the historic center of American clockmaking, ACWM is the world's preeminent horological museum in the area of American clocks, primarily industrial-made clocks of the 19th and early 20th century.