For some businessmen, a wristwatch is more than a time-telling device. "In an unfamiliar city, I can approach a complete stranger and with two words eradicate any barriers: 'Nice watch.'" "A watch tells people about the type of person you are and what you value," Powell added. "The guy who wears a blinged-out gold-diamond Hublot is very different than the guy with a vintage stainless-steel Zenith chronograph." With the help of Crown & Caliber's team of experts, we've put together a list of wristwatches worn by the former and current CEOs of some of the world's most powerful companies.

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