What are jewels in a mechanical watch good for?

I own mechanical and automatic watches but I have never understood what they mean when they talk about stones or jewels in the specifications. For example, my Theorema Toronto mechanical ... ago by aBlogtoWatch. Next Post What Is The Right Size Watch For My Wrist? read more

Ruby (Al2O3:Cr) is extremely hard, so instead of having hardened steel pinions resting on metal that will eventually wear off, watchmakers have them resting on ruby rings. read more

I own mechanical and automatic watches but I have never understood what they mean when they talk about stones or jewels in the specifications. For example, my Theorema Toronto mechanical watch has a mechanical movement with 17 Stones. read more

A mechanical watch is a watch that uses a mechanism to measure the passage of time, as opposed to modern quartz watches which function electronically. It is driven by a spring (called a mainspring) which must be wound periodically. read more