Why a $10 Casio Keeps Better Time Than a $10,000 Rolex

That self-winding perpetual-movement monstrosity strapped to your forearm is accurate across a hemisphere's worth of time zones. But no matter how extravagantly handcrafted or precisely engineered your Rolex is, it'll never be as accurate as a cheap digital gas station watch. Here's why. » 2/12/13 4:40pm 2/12/13 4:40pm