GF02

Double Tourbillon 30° Technique in platinum mechanical hand-wound movement, Calibre GF02 s Double Tourbillon 30° • hour and minute display • outer tourbillon 4-minute rotation indicator inner tourbillon 60-second rotation indicator • power-reserve indicat

Thanks to the Greubel & Forsey AD in Paris, I had the opportunity to see and handle the Double Tourbillon 30°. Let's say it directly: it's a fantastic timepiece. The Double Tourbillon exists in two versions: vision (with a visible tourbillon through the o