This week, two important auctions are taking place in NYC. The first happened yesterday at Sotheby's, featuring both a gold automatic minute-repeating hinged Patek Philippe—one of only 30 made—and an ultrarare 1971 "Albino" Rolex Daytona (pictured) that once belonged to Eric Clapton. It sold for an estimate-busting $505,000, but you can pick up the catalog for 55 bucks at sothebys.com And today, Christie's will stage its own event, headed by a rare 18-karat gold, water-resistant perpetual-calendar Patek Philippe, est. $250,000-$400,000. The sale also includes a 1962 stainless-steel Wittnauer owned by Joe DiMaggio, available for a (relatively) modest two to three grand. Still too steep? Well, there's also some wristwear from former NYC mayor Ed Koch.