When someone offers you a drop of whisky, it's usually in a glass and accompanied by quite a few other drops. When Swiss watchmaker Louis Moinet offers you a drop of whisky, it's because there's exactly that in 50 special-edition watches, one drop of Old Vatted Glenlivet 1862, the oldest whisky in the world. At $45,000 for the gold version, that's a very expensive round.