Horology is the study of the measurement of time. Clocks, watches, clockwork, sundials, hourglasses, clepsydras, timers, time recorders, marine chronometers, and atomic clocks are all examples of instruments used to measure time. In current usage, horology refers mainly to the study of mechanical time-keeping devices, while chronometry more broadly includes electronic devices that have largely supplanted mechanical clocks for the best accuracy and precision in time-keeping.
A cuckoo clock is a type of clock, typically pendulum driven, that strikes the hours with a sound like a common cuckoo call and has an automated cuckoo bird that moves with each note. Some move their wings and open and close their beaks while leaning forwards, whereas others have only the bird's body leaning forward. The mechanism to produce the cuckoo call has been in use since the middle of the 18th century and has remained almost without variation.
A clockmaker is an artisan who makes and/or repairs clocks. Since almost all clocks are now factory-made, most modern clockmakers only repair clocks. Modern clockmakers may be employed by jewellers, antique shops, and places devoted strictly to repairing clocks and watches. Clockmakers must be able to read blueprints and instructions for numerous types of clocks and time pieces that vary from antique clocks to modern time pieces in order to fix and make clocks or watches. The trade requires fine motor coordination as clockmakers must frequently work on devices with small gears and fine machinery.
A clock face is the part of an analog clock that displays time through the use of a flat dial with reference marks, and revolving pointers turning on concentric shafts at the center, called hands. In its most basic, globally recognized form, the periphery of the dial is numbered 1 through 12 indicating the hours in a 12-hour cycle, and a short hour hand makes two revolutions in a day. A long minute hand makes one revolution every hour. The face may also include a second hand, which makes one revolution per minute. The term is less commonly used for the time display on digital clocks and watches.
A pocket watch is a watch that is made to be carried in a pocket, as opposed to a wristwatch, which is strapped to the wrist.
A grandfather clock is a tall, freestanding, weight-driven pendulum clock, with the pendulum held inside the tower or waist of the case. Clocks of this style are commonly 1.8–2.4 metres (6–8 feet) tall with an enclosed pendulum and weights, suspended by either cables or chains, which have to be occasionally calibrated to keep the proper time. The case often features elaborately carved ornamentation on the hood, which surrounds and frames the dial, or clock face.
Mantel clocks—or shelf clocks—are relatively small house clocks traditionally placed on the shelf, or mantel, above the fireplace. The form, first developed in France in the 1750s, can be distinguished from earlier chamber clocks of similar size due to a lack of carrying handles.
Chauncey Jerome (1793–1868) was an American clockmaker in the early 19th century. He made a fortune selling his clocks, and his business grew quickly. However, his company failed in 1856, and he died in poverty.
A lantern clock is a type of antique weight-driven wall clock, shaped like a lantern. They were the first type of clock widely used in private homes. They probably originated before 1500 but only became common after 1600; in Britain around 1620. They became obsolete in the 19th century.
Simon Willard was a celebrated American clockmaker. Simon Willard clocks were produced in Massachusetts in the towns of Grafton and Roxbury, near Boston. Among his many innovations and timekeeping improvements, Simon Willard is best known for inventing the eight-day patent timepiece that came to be known as the gallery or banjo clock.
Eli Terry Sr. was an inventor and clockmaker in Connecticut. He received a United States patent for a shelf clock mechanism. He introduced mass production to the art of clockmaking, which made clocks affordable for the average American citizen. Terry occupies an important place in the beginnings of the development of interchangeable parts manufacturing. Terry is considered the first person in American history to actually accomplish interchangeable parts with no government funding. Terry became one of the most accomplished mechanics in New England during the early part of the nineteenth century. The village of Terryville, Connecticut is named for his son, Eli Terry Jr.
The Willard House and Clock Museum is a museum located in North Grafton, Massachusetts, United States.
Benjamin Willard, Jr., was an American clockmaker.
Aaron Willard was an entrepreneur, an industrialist, and a designer of clocks who worked extensively at his Roxbury, Massachusetts, factory during the early years of the United States of America.
A lighthouse clock is a type of mantel clock manufactured in the U.S. from 1818 through 1830s by the American clockmaker Simon Willard, having the dial and works exposed beneath a glass dome on a tapered, cylindrical body.
All Willard Brothers were born at their modest family farm in Grafton, Massachusetts, successively between 1743 and 1755. Owning independent workshops at Boston, they were the most celebrated clockmakers in the early United States.
Johann Baptist Beha was a prestigious Black Forest clockmaker born in Oberbränd (Eisenbach). He was trained by his father, the master clockmaker Vinzenz Beha (1764-1868), in his workshop where he built around 365 clocks between 1839 and 1845. At that time V. Beha was already known for the quality of his clocks, he made the so-called Shield cuckoo clocks.
The Cuckooland Museum, previously known as the Cuckoo Clock Museum, is a museum that exhibits mainly cuckoo clocks, located in Tabley, Cheshire, England. The collection comprises 300 years of cuckoo clock-making history, since the very earliest examples made in the 18th to the 21st century.
A French Empire-style mantel clock is a type of elaborately decorated mantel clock that was made in France during the Napoleonic Empire (1804–1814/15). Timekeepers manufacturing during the Bourbon Restoration (1814/1815–1830) are also included within this art movement as they share similar subjects, decorative elements, shapes, and style.
Tokugawa Ieyasu's Clock is a clock which was given to Shogun Tokugawa Ieyasu of Japan by King Philip III of Spain in 1611. Built in 1573 or 1581, the clock is the oldest surviving clock in Japan and one of the few surviving clocks in the world of its era. Since Ieyasu's death, the clock has been stored at Kunōzan Tōshō-gū, and has since been designated as an Important Cultural Property with application to designate it as a National Treasure in Japan under consideration. A 2012 examination by the British Museum concluded that the clock is likely the only clock in the world of its era in which almost all of the internal parts remain as they were originally made.
