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What does jewels mean in watches?

Answers:1   |   LastAnswerAt:2011.06  

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anne lane 
Asked at 2011.06.02 01:09:37

answer jessie lake  Answered at 2011.06.02 01:09:37
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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