Does a higher number of jewels in a watch indicate increased value and better quality?
No. First it should be noted that the jewels used in a watch movement to reduce friction are made of synthetic material of precious or semi-precious stones, usually a very inexpensive form of synthetic ruby. These jewels do not add any monetary value to a watch. Also, more jewels does not necessarily make a better watch. While too few can certainly be a problem, the exact number needed for optimal performance depends on the specific design and features of the movement. Overall, 17 jewels is the lowest number needed for most standard mechanical watch movements. Others movements that implement different designs, or complications such a chronographs, may use more or less. But a novice cannot derive useful basis of evaluation or comparison from the fact that a watch has 15, 17, 21, 25 or more jewels.
