When Robert Greubel and Stephan Forsey joined forces in 2004, their goal was to create the most sophisticated and exclusive timepieces in the world. With production runs that measure in the low dozens, and prices that soar up to $215,000, they have succeeded. New models include the Grande Sonniere, the Signature and the Double Balancier, but the timepiece that launched the firm is the breathtakingly sophisticated Double Tourbillion 30° Technique. Powered by the firm’s proprietary mechanical movement with a 120-hour power reserve, the signature design with an open dial allows the wearer to observe the inner workings in action from multiple vantage points. For the ultimate in exclusivity, consider the Double Tourbillion 30° Technique lovingly set into a transparent sapphire case. Only 8 exist, making this the surest way to avoid wearing the same watch at your next soiree; GreubelForsey.com.