Since it was invented over 200 years ago, the wristwatch has been an integral component of men's fashion.

In addition to their practical functionality of telling time, a watch serves as a collectible piece of art that communicates the personality and style of its wearer.

With the help of Crown and Caliber, an Atlanta-based preowned-luxury watch marketplace, we've put together a list and commentary about the wristwatches worn by nine of the most powerful men in the financial services industry.