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https://www.prestigetime.com/blog/what-are-the-jewels-in-a-watch-for.html
Dec 11, 2020 · Watches are no different and also use bearings and these bearings that are found in the higher-end automatic and hand-wound watches are made out of jewels. These precious stones are smooth and don't allow much friction and are therefore …
https://quillandpad.com/2018/06/29/the-number-of-jewels-in-a-watch-movement-indicates-value-doesnt-it-a-myth-debunked/
Jun 29, 2018 · Contemporary watches utilize jewels in a variety of areas, including as pivot bearings for wheels, automatic winding components, and calendar mechanism as well as pallet stones. The gear train wheels of a watch are the means of transmitting …
https://automaticwatchesformen.com/quartz-watches-and-jewels
Jul 06, 2019 · Jewels are historically used in automatic watches as bearings to reduce the wear and tear in the many moving parts – there are typically 15 to 30 jewels inside an automatic watches (depending on the movement maker and complications). Automatic watch …
https://strapchange.com/what-are-watch-jewels-what-does-21-jewels-mean/
Back in the days it was natural jewels (diamonds, sapphire and rubies) which were grinded and put into the watches. Now adays you can use various tecniques to produce synthetic jewels, which makes the movements cheaper. See the pink jewel sitting in the rotating wheel? The jewels basically make the watch movement last longer. As it reduces the metal to metal frictional tear, thus reducing service …
https://en.wikipedia.org/wiki/Jewel_bearing
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 where low friction, long life, and dimensional accuracy are important. Their …
https://watchranker.com/best-affordable-automatic-watches/
Best Affordable Automatic Watches for Men Orient Bambino Version IV Japanese Automatic Stainless-Steel Watch Orient Men’s Bambino Version 4 Japanese-Automatic Watch (Image: Amazon) The Orient Bambino Version IV is a sleeker iteration of the series. It uses a stainless-steel case and a leather dress to provide that sophisticated yet casual ...
https://www.gearpatrol.com/watches/a487095/common-automatic-watch-movements/
Jun 24, 2020 · Similar in feature set to the 2824-2 and the SW200, the 9015 is an automatic movement made by Miyota, which is part of the Citizen Group. First produced in 2009 and developing upon the 8215 caliber, the 9015 differs from the 2824-2 in the number of jewels, the length of the power reserve, height and the absence of multiple grades.
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