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https://strapchange.com/what-are-watch-jewels-what-does-21-jewels-mean/
What does “21 jewels” mean? As all watches have many moving parts, jewels were inserted to lessen the wear and tear on the bearings and other pivot points. Meaning all the rotating parts and other high frictional points in the watch; which before were metal againts metal parts, were exchanged with hard jewels.
http://www.swiss-watches-guide.com/21-jewel-movement.html
A 21 jewel movement was – and still is - used to help keep the watch running smoothly. Tiny synthetic gem crystals are set between many of the gears, in order to reduce friction. These gems resist temperature better than metal, and hold lubricant much longer.
https://www.thewatchsite.com/threads/21-jewels-meaning.10845/
Nov 30, 2016 · cobrajet25. Jewels, in watch terms, are tiny, synthetic, non-precious stones used in watch movements as bearings. These jewel bearings wear very slowly, and reduce friction in the movement. The more jewels, the higher grade the watch is (in general). A typical good quality hand-wind or automatic watch should have about 17 jewels as a minimum.Estimated Reading Time: 4 mins
https://www.prestigetime.com/blog/what-are-the-jewels-in-a-watch-for.html
Jul 25, 2021 · Around 17 stones are used on a standard mechanical jewel watch without any high-complications, in some cases, 21 jewels are used to minimize positional errors as mentioned above.Estimated Reading Time: 6 mins
https://bestwatchselect.com/what-does-the-number-of-jewels-in-a-watch-mean/
An alternative to a 17-jewel watch is a 21-jewel watch. This is essentially the same thing, except that of 17 jewels, the watch relies on 21 jewels to run. These extra jewels are also added to reduce positional errors and for the most part, the extra jewels are found in more high-quality watches. What Does 25 Jewels Mean in a Watch?
https://timepieceking.info/what-is-a-watch-jewel/
A 21-jewel watch contains 21 jewels in the specified parts of the watch as bearings. A 21-jewel watch often also includes some extra capstones to lessen positional eros and improve accuracy. In this case, high-quality automatic watches tend to have an extra number of jewels. What is the highest number of jewels in a watch?
https://quillandpad.com/2018/06/29/the-number-of-jewels-in-a-watch-movement-indicates-value-doesnt-it-a-myth-debunked/
Jun 29, 2018 · Jewels that are added only to increase the jewel count add expense to the manufacture of the watch, without providing any real benefit. Jewels are meant to provide wear protection to friction surfaces to prevent the watch from breaking down after only a short period of time in use because it takes a gemstone longer to wear away than bare metal.Estimated Reading Time: 7 mins
https://www.bobswatches.com/rolex-blog/resources/jewels-purpose-watch-movements.html
Jul 16, 2019 · Rubies in your timepiece actually indicate quality. The jewel count of a watch is often a direct indicator of the complexity of the mechanism. To put things into perspective, the average mechanical watch will utilize 17 jewels. The vast majority of them serve as either cap or pivot jewels; however an impulse jewel is used for the balance wheel ...Estimated Reading Time: 4 mins
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