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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.
https://www.youtube.com/watch?v=3MocClUDXtw
Mar 16, 2017 · Seiko 23 Jewel Watches:Seiko Presage: https://amzn.to/2pkWMKoSeiko SNZH53: https://amzn.to/2D8lKGGSeiko 5 SNZG09K1: https://amzn.to/2DaRc7kSeiko Save the oce...
https://www.youtube.com/watch?v=lKJmF3AuNu0
Feb 20, 2018 · Jewels in watch movements are a sign of quality. In this video the reason for watch jewels is vividly explained using a 17 jewel Timor movement. When I ope...
https://www.prestigetime.com/blog/what-are-the-jewels-in-a-watch-for.html
Jul 25, 2021 · 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. What does 21 jewels mean in a watch?Estimated Reading Time: 6 mins
https://quillandpad.com/2018/06/29/the-number-of-jewels-in-a-watch-movement-indicates-value-doesnt-it-a-myth-debunked/
Jun 29, 2018 · Some manufacturers ventured as far as printing the number of jewels in the movement on the dial, a conceit that that has thankfully practically disappeared. Vintage Jaeger “Panda dial 4 ATM”: proudly professing it has 17 jewels in the movement Seriously, …
https://timepiecelegacy.com/are-watch-jewels-worth-anything/
As the watches became more complicated, the number of jewels gradually increased. Watches have no complications have about 15 jewels to 17 jewels, which are considered to be the most common type of mechanical watch these days. Watches with complications have about 21 jewels to 26 jewels.
https://mb.nawcc.org/threads/17-verses-23-jewels.13773/
Nov 20, 2004 · When the mechanical watch reigned supreme, a seventeen jewel movement was considered the standard quality here in the USA. That meant that all train wheels (four of them) and the pallet arbor were jeweled at each end. The standard lever escapement required seven jewels (two cap, two balance holes, two pallet stones, and a roller jewel).
https://www.allinwatches.com/do-all-quartz-watches-have-jewels/
The synthetic jewels have a similar scale of hardness to diamonds on the Mohs scale of mineral hardness. A movement that solely shows time has 17 jewels. In contrast, a movement with a date and winding mechanism (an automatic watch) has around 25 jewels.
https://www.muzeum.ca/blogs/news/are-my-old-watches-worth-anything
Sep 15, 2017 · A 17 jewel watch is considered to be fully-jewelled. Historically, rubies were most commonly used as the functional jewels in antique watches due to the fact that they are hard and wear down slowly. This reduces friction and streamlines the process of watchmaking.
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