A Patek Philippe watch has sold for $31 million, the highest price ever paid for a wristwatch, at a biennial charity auction hosted by Christie's in Switzerland to benefit research into a form of muscular dystrophy. The stainless steel Patek Philippe Grandmaster Chime 6300A-010 has a reversible case with dials in rose gold and black ebony and 20 special functions. Among those functions are five chiming modes, and an acoustic ...