The quartz crisis (Swiss) or quartz revolution (American, Japan and other countries) was the upheaval in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world.

They can be quite valuable, and there's a large and enthusiastic community of collectors out there. There are a few things to look for when buying quartz watches as collectibles: age, rarity, brand, and condition.

Quartz movement was invented in 1927 but the modern era of Quartz wristwatches starts way back in 1969...