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https://pocketwatchdatabase.com/reference/jewels
Pocket Watch Jewels. Jewels are hard minerals added to the mechanics of the watch to prevent wear at pivot and collision points. Generally, the jewel count is a direct indicator of overall quality. The standard jeweling configurations for conventional movements are described below.
https://mb.nawcc.org/wiki/Encyclopedia-Subjects/American-Pocket-Watches/Pocket-Watch-Jewels
Apr 25, 2009 · Pocket Watch Jewels. The jewelling of movements is one of the aspects of watches that is least understood by novices. Simply put, the jewels are mostly low-friction bearing surfaces and they have little monetary value beyond the cost of labor to shape and mount them. Their use is excellently illustrated in a 1902 Illinois ad.
https://www.ebay.com/sch/i.html?_nkw=pocket+watch+jewels+lot&_sop=12
Lot Of 230 Pocket Watch Unset Loose Jewels, Jeweled Plates, Plates W/Out Jewels. New (Other) $79.95. Buy It Now. Free shipping.
http://www.julesborel.com/products/Seitz-Jewels
Seitz Center Jewels - 30714. Seitz Domed Balance Jewels / Olive Hole - 30710. Seitz Endstone Jewels - 30713. Seitz Flat Jewels / Cylind. Hole - 30712. Seitz Jewel Assortments. Seitz Pallet - Receiving - 30716. Seitz Pallet -Discharging- 30717. Seitz Roller Pin Jewels - 30715.
http://www.pocketwatchrepair.com/how-to/seven-jewel.php
Why 7-jewel watches can be a problem to repair. The gears on an old pocketwatch operate under a lot of spring tension, especially on 12, 16 and 18-size pocket watches with strong blue-steel mainsprings. As the watch is running, the gears turn round and round, and the steel axle of the gear under all that spring tension gradually wears away at ...
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