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Excessive cleaning can "cause more issues like over-drying of bearings and stress corrosion cracking of brass that is exposed to ammonia solution". [9] The mechanisms within clocks are highly sensitive to external matter like oils from fingertips or dust, so much so, that it can cause the machine to malfunction if it gets into the wrong area. [5]
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 ...
Mainspring. An uncoiled modern watch mainspring. A pendulum wall clock movement showing the two mainsprings which power it. This is a striking clock which sounds the hours on a chime; one of the springs powers the timekeeping gear train while the other powers the striking train. A mainspring is a spiral torsion spring of metal ribbon—commonly ...
Fusee (horology) A fusee (from the French fusée, wire wound around a spindle) is a cone -shaped pulley with a helical groove around it, wound with a cord or chain attached to the mainspring barrel of antique mechanical watches and clocks. It was used from the 15th century to the early 20th century to improve timekeeping by equalizing the ...
Pegwood is made from a specially selected orangewood that has been dried and sheds very little. A peg wood consists of a thin piece or dowel of wood that the user shapes to be pointed. The standard length is 150 mm and the thickness varies from 2 to 6 mm. [2] They are also used to clean watch case backs and watch case rims, to dry hands and to ...
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 ...
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 ...
A jewel bearing is a plain bearing in which a metal spindle turns in a jewel -lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. The jewels are typically made from the mineral corundum, usually either synthetic sapphire or synthetic ruby. Jewel bearings are used in precision instruments ...
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