March 13, 2026
You think you know luxury watches? The Roger Dubuis Excalibur Grande Complication is on a completely different level. Here are four mind-blowing facts you probably didn’t know about this $691,000 masterpiece.
1. It Has Two Engines (Sort Of)
Flip this watch over and you won’t see one self-winding rotor, but two. The RD118 caliber features a stunningly symmetrical pair of micro-rotors. Why two? For one, it provides roughly double the winding efficiency to replenish the 60-hour power reserve for this complex machine. The other reason? Let’s be honest, it just looks incredibly cool and is a massive flex that you won’t find on most other watches.
2. A Secret Sound System
This Excalibur doesn’t just tell you the time; it can chime it for you. Hidden within its 684 parts is a minute repeater complication, a feature for true connoisseurs. You can see the mechanism from the back, where two polished steel hammers stand ready to strike gongs, creating a clear, beautiful sound. It’s an auditory wonder tucked away inside a visual one, combining the best of both worlds.
3. It’s Certified Awesome
See that little stamp at 4:30? That’s the Poinçon de Genève, or Geneva Seal, and it’s a huge deal. This isn’t just a mark of origin; it’s one of the most rigorous certifications in watchmaking. It guarantees elite-level finishing on every single component, but it also covers performance, accuracy, and even water resistance. It’s proof that every millimeter of this watch, from the movement to the solid pink gold case, is held to an almost impossibly high standard.
4. It Speaks French, Literally
Ever wonder why it’s “Grande Complication” and not “Grand”? The brand uses the French spelling to honor its heritage. It’s a subtle detail, but one that purists appreciate. True watch nerds know the difference and understand that using the French term “haute horlogerie” (high watchmaking) is the proper way to speak about art like this. It’s an “if you know, you know” detail that separates the enthusiasts from the crowd.
With its wild design and next-level engineering, the Excalibur Grande Complication is more than just a watch; it’s a statement piece packed with secrets. Which detail surprised you the most?
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