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A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves. A mechanical watch is driven by a mainspring which ...
Movement (clockwork) In horology, a movement, also known as a caliber or calibre ( British English ), is the mechanism of a watch or timepiece, as opposed to the case, which encloses and protects the movement, and the face, which displays the time. The term originated with mechanical timepieces, whose clockwork movements are made of many moving ...
The American system of watch manufacturing is a set of manufacturing techniques and best-practices to be used in the manufacture of watches and timepieces. It is derived from the American system of manufacturing techniques (also called "armory practices"), a set of general techniques and guidelines for manufacturing that was developed in the 19th century.
A watchis a portable timepieceintended to be carried or worn by a person. It is designed to keep a consistent movement despite the motions caused by the person's activities. A wristwatchis designed to be worn around the wrist, attached by a watch strapor other type of bracelet, including metal bands, leatherstraps, or any other kind of bracelet.
An automatic watch, also known as a self-winding watch or simply an automatic, is a mechanical watch where the natural motion of the wearer provides energy to wind the mainspring, making manual winding unnecessary if worn enough. [1] It is distinguished from a manual watch in that a manual watch must have its mainspring wound by hand at regular ...
The Waltham Watch Company, also known as the American Waltham Watch Co. and the American Watch Co., was a company that produced about 40 million watches, clocks, speedometers, compasses, time delay fuses, and other precision instruments in the United States of America between 1850 and 1957. The company's historic 19th-century manufacturing ...
Tourbillon. In horology, a tourbillon ( / tʊərˈbɪljən /; French: [tuʁbijɔ̃] "whirlwind") is an addition to the mechanics of a watch escapement to increase accuracy. Conceived by the British watchmaker and inventor John Arnold, it was developed by his friend the Swiss-French watchmaker Abraham-Louis Breguet and patented by Breguet on 26 ...
Open-face watches. An open-face pocket watch made by the Swiss watchmaker Omega, c. 1970. An open-faced, or Lépine, [9] watch, is one in which the case lacks a metal cover to protect the crystal. It is typical for an open-faced watch to have the pendant located at 12:00 and the sub-second dial located at 6:00.
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