Understanding What Rubies Inside a Watch Movement Are All About

Rubies inside watch movements act as ball bearings and eliminate friction.

In our ongoing effort to answer reader inquiries, we find a lot of questions about why rubies are used in watch movements. Here, we explain what rubies inside a watch movement are all about. Essentially, rubies inside watch movements act as ball bearings and eliminate friction. Unless a new watch utilizes high-tech ceramic ball bearings…

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