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https://diefendorffwatches.com/blogs/news/what-are-jewels-in-a-watch
Are the jewels in a watch valuable? Unfortunately, they are not valuable. Rather, they are super tiny pieces of synthetic ruby (so basically they’re worthless, which is why you shouldn’t get excited) that act as way to make sure that all the super-tiny parts of your watch’s …
https://www.bobswatches.com/rolex-blog/resources/jewels-purpose-watch-movements.html
Jul 16, 2019 · 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 and two pallet jewels serve as the teeth for the pallet fork.
https://www.watchdoctor.biz/watch-jewels/
Synthetic rubies (sometimes synthetic sapphires) are used as bearings at the heaviest points of wear in a watch movement in order to reduce friction between moving parts and increase a movement’s lifespan. Jewels have a naturally slicker surface than metal. Jewels are only used to increase the accuracy of the movement and are not for decoration.
https://tufinawatches.com/blogs/news/what-do-jewels-in-a-mechanical-watch-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 …
https://watchranker.com/why-watches-have-jewels/
Jun 20, 2018 · Stones or jewels are used in watches to prevent or reduce friction between the surfaces of moving metal parts within a watch. When metal rubs against metal in the absence of lubrication, the moving parts like pivots and bearings in a watch can get worn quickly, which can lead to the watch breaking down. Although in the early days genuine semi-precious stones like rubies …
https://www.menshealth.com/style/a19543455/real-reason-watch-movement-jewels/
Sep 11, 2014 · However, a well-designed movement includes jewels only where needed: the purpose is to extend your watch’s life between servicing, preventing wear and tear in areas under constant stress.
https://quillandpad.com/2018/06/29/the-number-of-jewels-in-a-watch-movement-indicates-value-doesnt-it-a-myth-debunked/
Jun 29, 2018 · The gear train wheels of a watch are the means of transmitting power from the mainspring to the escapement. In order to make that process as efficient and friction free as possible, jewels are used as bearings for the pivots of those wheels.
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