Introduced in Geneva last month, the Greubel Forsey Art Piece 1 is an amazing collaboration between watchmaker and artist. It features a 30° inclined double tourbillion, combined with a micro-sculpture, created by renowned artist Willard Wigan. The sculptures that Wigan creates are so small they are not even visible to the naked eye. So small in fact, that Greubel Forsey had to build a microscope into the timepiece.

This is unchartered territory, so it was no easy task to produce a microscope that has a large opening and enough light for a human eye to see in, without making the optic too big that it would ruin the proportions of the timepiece.

By closing one eye and looking through the optical opening in the crown, one can enjoy a magnified view of the one-of-a-kind micro-sculpture through the 23x microscope.

To give you a better idea of how difficult it is to create something this small, Wigan has to slow down his heartbeat in order to guide his scalpel in between the beats of his heart. When you think about how small, detailed, and incredible watchmaking is — especially at the level that Greubel Forsey works at — it seems only fitting that they would collaborate with the artist best known for creating the world’s smallest works of art.