Explore the fascinating world of tourbillons in this comprehensive lecture by Stephen Forsey, co-founder of Greubel Forsey and CompliTime SA. Delve into the rich history of this intricate watchmaking complication, from its origins in pocket watches to its evolution in modern wristwatches. Discover the advantages of tourbillons, their differences from karussels, and various special types developed over time. Learn about the first tourbillons used in wristwatches and their subsequent advancements, including multi-axial designs. Gain insights into Greubel Forsey's groundbreaking inventions, such as the Double Tourbillon 30 and inclined tourbillons, and understand the principles behind their improved chronometric performance through laboratory tests and practical applications.