By Michael Thompson Last week, we brought you the news of the new Greubel Forsey Double Tourbillon 30-Degree Technique Sapphire here. Now we bring you an exclusive interview with Stephen…

By Michael Thompson Last week, we brought you the news of the new Greubel Forsey Double Tourbillon 30-Degree Technique Sapphire here. Now we bring you an exclusive interview with Stephen…