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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 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. There was a craze for higher and higher jewel counts many years ago culminating in ridiculously high jewel counts. One watch claimed as ...
https://www.prestigetime.com/blog/what-are-the-jewels-in-a-watch-for.html
Dec 11, 2020 · What does 17 jewels mean? A watch with 17 jewels is often called a fully jeweled watch. This means that it uses jewel (usually ruby) bearings in the mechanical movement from the balance wheel all the way to the center wheel pivot.
https://en.wikipedia.org/wiki/Mechanical_watch
23 jewel watch - adds: 2 mainspring barrel bearings; Self winding watches add 4 or more in the winding mechanism, for a total of 25-27 The number of jewels used in watch movements increased over the last 150 years as jeweling grew less expensive and watches grew more accurate.
https://www.thewatchsite.com/threads/21-vs-23-jewel-watches.9288/
Oct 09, 2010 · Typically the 7s26 (21 jewels) and the 7s36 (23 jewels) have the same exact accuracy spec of -15/+25 seconds per day or thereabouts. Accuracy in a mechanical watch is more of a function of how it is regulated and adjusted (or not) at the factory for postional variance and temperature. Typically, entry level mechanical watch movements such as these are non-adjusted for position and …
https://www.watchophilia.com/general-information/bulova-23-series/
The Bulova 23s were waterproof, shock resistant, anti-magnetic, and self-winding, and, according to the ads we have to-date, they were all round and read "23 Jewels" on the dial under the Bulova name. There were, however, other models made by Bulova at the same time as the Bulova 23 that also had 23-jewel movements.
https://diefendorffwatches.com/blogs/news/what-are-jewels-in-a-watch
What does 26 jewels mean? What does 17 jewels mean? Watches have tiny pieces of synthetic ruby inside of them to help in the frictionless movement of the many tiny parts in your watch - 26 jewels simply means that there are 26 of them and 17 mean that there are 17 of them. Are the jewels in a watch valuable? Unfortunately, they are not valuable.
https://www.quora.com/What-does-it-mean-when-a-watch-has-21-jewels-and-what-is-their-functionality-in-the-watch-movement
Sep 14, 2019 · Originally Answered: What do 23 jewels mean in a watch? Jewels are a way to act as bearings for the wheels and cogs to turn on. They're made from artificial sapphire. They're placed in those places with the highest chance of friction, and are lubricated too. Some cheap movements will make do with five jewels, the most common is 17, at least in the old days.
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