In this video, Anthony de Haas, Director of Product Development, at German-based watchmaker A. Lange & Sohne, demonstrates the complicated Datograph Perpetual Tourbillon that was launched at the Geneva watch show (SIHH) in January.

At 10 minutes, this video is not short, but considering every technical feature of this incredible flagship Datrograph is precisely explained by the person in charge of its development – it is well worth the watch.

Jason Pitsch
Posted by:Jason Pitsch

Jason Pitsch is the founder and editor of Professional Watches. He appreciates good design and engineering in everything from architecture to automobiles to cameras to clothing. Yet his focus for the past decade has remained consistent on covering just one type of craftsmanship: watchmaking.