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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 hand-winding movement of a Russian watch. 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.
Wheel train. In horology, a wheel train (or just train) is the gear train of a mechanical watch or clock. [1] Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their gear trains which is not used in other applications of gears .
Hand-powered electrical equipment, such as a clockwork radio, where an energy-storing spring accounting for much of the size and weight of the device rotates a much smaller electric generator; such equipment is very popular where batteries and mains power (house current) are scarce. Movement of a grandfather clock with striking mechanism.
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 ...
No. Yes. Yes. ETACHRON. Chronograph mechanism with cams, 3 push buttons, chronograph 60 seconds, 30 minutes and 12 hours counters, date in window, date correction by means of push button at 10 o’clock. 7754 [24] Yes. Yes. small second.
The spiral balance spring is visible at top. A balance wheel, or balance, is the timekeeping device used in mechanical watches and small clocks, analogous to the pendulum in a pendulum clock. It is a weighted wheel that rotates back and forth, being returned toward its center position by a spiral torsion spring, known as the balance spring or ...
Types of watch movements The parts of a pocket watch movement by B. G. Seielstad Key-wind, key-set movements. The first pocket watches, since their creation in the 16th century, up until the third quarter of the 19th century, had key-wind and key-set movements. A watch key was necessary to wind the watch and to set the time.
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