Oval Office grandfather clock

Seymour clock in the Oval Office
Similar Seymour clock in the Metropolitan Museum of Art

The Seymour tall case clock in the White House, more commonly known as the Oval Office grandfather clock, is an 8-foot-10-inch (269 cm) longcase clock, made between 1795 and 1805 in Boston by John and Thomas Seymour, and has been located in the Oval Office since 1975. Since the presidency of Gerald Ford it has remained one of the few constant features in the office, throughout several renovations.