Tiffany's is a jeweler, not a watchmaker. Same goes for Cartier. If he's looking for a slim, elegant watch try Jaquet Droz - it will definitely be a unique standout masterpiece and not something recognizable by the proletariat. If you're looking for something a little different but also not easily recognizable, go for an Ulysse Nardin. Take a look at IWC watches as well - perfect balance on all fronts; would be my pick in the price range. If you get a Breitling, Rolex, blah blah blah, well, that's about it - blah blah blah.