There are three versions of the Tourbillon 24 Secondes to date: the Asymétrique, Contemporain and Vision models. Greubel Forsey has decided to pay homage to the first of these three versions, the “Tourbillon 24 Secondes Asymétrique”, by creating a Unique edition: the Tourbillon 24 Secondes Edition Historique. For this timepiece, the architecture of the dial was entirely reinterpreted and redesigned with a 3D engraved text that reveals the Greubel Forsey philosophy. The sectoral seconds and power reserve displays have also been redesigned. These two display systems have never before been featured in a Tourbillon 24 Secondes timepiece.