Searching for Seiko 21 Jewels Vs 23 Jewels information? Follow the links below to find all the information you need and more.
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.
https://strapchange.com/what-are-watch-jewels-what-does-21-jewels-mean/
As for the referenced watch above (Seiko 5 Snk809), which has one of Seiko´s highly used and robust movements (the 7S26), there are 21 jewels inside. I assume Seiko use synthetical jewels and that they have made many attempts, in trying to create the best movement, with the most optimal amount of jewels …
https://mb.nawcc.org/threads/21-vs-23-jewel.139774/
Jan 24, 2017 · Jan 21, 2017. #7. To answer your specific question then yes a 23 jewel movement will always demand a higher price than a 21 jewel, and a 24 jewel will be higher than a 23 jewel. However unless you're buying orphan movements you must consider the size, dial type, hands, small differences in grade, and case material too.
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 today are friction-fit into main plates and bridges, however that process only began around the 1930s. Before then jewels were “rubbed in” to a brass setting. The great disadvantage with this style of jewel setting is the time and effort needed to replace them.
https://www.watch-wiki.net/index.php?title=Seiko_calibres
Seiko 7S26 family (1996-Present) - 21/23 jewels, 21,600 A/h, used in Five; Seiko 4R35 family (2010-Present) - 23/24 jewels, 21,600 A/h; Alarm Seiko 4006 (1967-1978) - Suwa, 31.2 mm, 17/21/27 jewels, 19,200 A/h, alarm function, used in Bell-Matic and Business Bell; Midrange Automatic
https://donghohaitrieu.com/tin-tuc/dong-ho/so-sanh-dong-ho-seiko-5-automatic-21-jewels-va-23-jewels-dau-la-khac-biet.html
– – – Seiko có một thông báo chính thức về việc máy Seiko 7S36 (23 jewels) sẽ bền hơn máy 7S26 (21 jewels), họ chỉ rõ: 7s26 sẽ hoạt động trong 10-20 năm mà không cần bảo dưỡng, 7s36 có thể kéo dài 12-22 năm mà không cần bảo dưỡng.
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