And last, but not least by any means, it's time to introduce the third host for The Classroom series. He's been on the channel before and is back again by popular demand. Meet Michael R. Michaels, a multi-brand/multi-level certified watchmaker also known as the Gordon Ramsey of watchmaking. Today, Mike will be giving us his insight on the Quartz Crisis, or, in his opinion, the Quartz Revolution. Mike takes the stance of the watchmaker and helps us understand why the Quartz Crisis was revolutionary from a watchmaking standpoint He'll also help you understand the quartz movement, some advantages and disadvantages, and how the Zenith El Primero saved the day.