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Why are jewels used in watches?

Updated: 9/15/2023
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8y ago

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With the arrival of "The General Railroad Timepiece Standards" for a railroad watch in 1893 there was a well established relevance between the number of jewels a pocket watch possesses and its accuracy. Initially the railroad system adopted 17 jewel movements as the "minimum" necessary for the railroad watches of its conductors and engineers. By the early twentieth century many railroad companies specified 19 jewels or more. While there are watches that where made to resemble a railroad watch with less jewels, they were made as cheaper imitations for the general public.

You may have noticed that there are tiny red or pink dots at various places on the bridge and pillar plate of your railroad watch. These are the jewels. This diagram illustrates the location of the jewels on a 16 size, 23 jewel Illinois "Bunn Special" railroad watch.

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Q: Why are jewels used in watches?
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Are watches that have jewels more valuable than those without?

Generally they are unless they are electronic watches.


What are clock jewels?

Clock jewels are the bearings used in expensive spring-wound clocks and watches, so called because they use a natural or synthetic jewel surface such as ruby or sapphire.


Why does your watch have 21 jewels?

There's a good discussion of jewels in watches here: http://elginwatches.org/help/watch_jewels.html


What is nineteen jewels on a watch?

The numbers of jewels that are referred to in watch movements all depends on the make and manufacture of the watch. Certain companies like Waltham used extra jewels in the mechanisms of their watches, and 19 was referred to as a 19 jewel movement.


What does 21 jewels mean in automatic watch?

Jewels are used in watches at friction points. You can get them to a very fine point and they will not wear down like metal. So at a point that a gear will be turning for days and days, they use a jewel. if they used metal the point would soon wear to a round nub. Like the end of a ball point pen. increasing friction, and slowing the watches movement. Decreasing the accuracy of the watches timekeeping ability. Usually the higher amount of jewels in a watch the more accurate. Also more moving pieces. Historically the more jewels the more expensive. That was when all the watch pieces were made by hand, and needed to be very precise. Now that we have CNC and computers making very precise components, that old adage isn't so true. Jewels are used in all watches that have gears and movements in them. Not just Automatic watches. The newer watches that are basically small printed circuits and LED readouts don't have them, because of no moving parts. And I'm not sure if new cheap watches with moving hands, they may have little electric motors. But if it is old, or new and you can see moving gears when you remove the back. It has "Jewels".


What does 20 jewels on a watch mean?

Jewels in watch terms are gem bearings that were used within the mechanical assembly inside the watch to reduce friction. Many of the low to medium range watches produced commonly used garnet or quartz. Top quality mechanical watches used Sapphire, Ruby or Diamond bearings as the gems have a lower coefficient than garnet or quartz.


Why does a highwayman steal?

Highwaymen would steal anything of value (money, jewels, watches, etc).


Are watches water resistant if they say 4 jewel?

The number of jewels do not correlate to water resistance.


How much do Gucci watches cost?

Typically, Gucci watches that do not contain gold or diamonds are in the range of $300-$600. More expensive watches contain precious metals or jewels. These can be sold anywhere from $800-$1500


What do you call a person who sells precious stones rings and watches?

A person who sells jewels is called a jeweler.


Is quartz used in watches?

yes, quartz is used in watches and the quartz watches are known as best watches in the world


What is in a jewlery store?

Jewelry? AKA rings, watches, bracelets, jewels, gems, necklaces, gold, silver, pandora's etc