Regulator clocks, the most accurate form of pendulum clocks, were invented in the mid-18th century in a quest for greater timekeeping precision. They were weight-driven devices and featured a deadbeat escapement (an improvement on the anchor design). To ensure their accuracy, they usually omitted complicated features like calendars. Instead, each of the clock’s hands worked off a different mechanism. The Englishmen Benjamin Vulliamy and...Continue Reading