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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 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 …Estimated Reading Time: 7 mins
https://www.prestigetime.com/blog/what-are-the-jewels-in-a-watch-for.html
Jul 25, 2021 · 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. What does 21 jewels mean in a watch? Similar to a 17-jewel watch …Estimated Reading Time: 6 mins
https://www.vintagewatchstraps.com/blogjewels.php
Feb 16, 2016 · 15 Jewels: Higher quality watches also have jewels for the bearings of the pallet staff and the pivots of the train wheels. There are two jewels for the pallet staff, and two each for the third, fourth and escape wheel pivots, another eight jewels on top of the seven in the balance and escapement making 15 in total.
https://timepieceking.info/what-is-a-watch-jewel/
So the number of jewels used would typically indicate the complications of the watch’s movements. More jewels mean more complexity, and, believe it or not, that’s not always a good thing. A 15-17-jewel watch can be perfectly functional and be on par with an automatic watch with …
http://www.barrygoldberg.net/watchguide/jewels.htm
Very early pocket watches rarely had jewels, simply because the concept hadn't been invented yet or wasn't in common use. By the mid 1800's, watches typically had 6-10 jewels, and a watch with 15 jewels was considered high grade. By the 20th century, however, more and more watches were being made with higher jewel counts, and the quality of a watch is often judged by how many jewels it has.
https://www.benswatchclub.com/blog/what-are-jewels-in-a-watch
Sep 01, 2020 · Watch jewels, sometimes known as jewel bearings, are tiny pieces of synthetic ruby or sapphire set into holes within a watch movement. These gems primarily help to reduce friction and provide a hard, smooth surface to allow metal components such as the wheel train to rotate freely. The predictable friction of these jewels aids accuracy and their durability helps to increase the life of the …Estimated Reading Time: 6 mins
https://millenarywatches.com/jewels-in-movements/
Nov 26, 2019 · What are jewels in watch movements? The jewel in movements is actually bearings. The jewel bearing is a plain bearing in which a metal spindle turns in a jewel-lined pivot hole. Normally, the hole in the jewel bearing is shaped like a torus and is slightly larger than the shaft diameter. The big news is perhaps that jewels are mostly synthetic sapphire. In some cases ruby . The jewels you can see in watch …
https://strapchange.com/what-are-watch-jewels-what-does-21-jewels-mean/
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. Back in the days it was natural jewels (diamonds, sapphire and rubies) which were grinded and put into the watches.
https://faq.watchbuys.com/article/show/113520-what-does-17-jewels-mean
Jul 29, 2020 · What does "17 jewels" mean? Higher grade watches have traditionally used a jeweled movements, which means that jewels (originally natural ruby, now synthetic ruby) were actually used in the movement. These jewels are functional - they are used as the bearings for the wheel trains and in high wear parts such as the escape lever and impulse jewel.
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