The Greubel Forsey Art Piece 1 launched in Geneva last month is an amazing collaboration between watchmaker and artist. It has a double tourbillon tilted at 30°, combined with a miniature sculpture created by the famous artist Willard Wigan. The sculptures created by Wigan are so small that they are invisible to the naked eye. It was so intact that Greubel Forsey had to include a microscope in the timepiece. This is an uncharted territory, so it is no easy task to make a microscope with a large opening and enough light to be seen by the human eye, rather than making the optical lens too large without destroying the…