MP-11 To obtain a two-week power reserve, Hublot has developed an original and spectacular design movement integrating seven barrels paired in series. To enable the transmission of energy between the horizontal axis of the barrels and the vertical wheel driving the hour/minute displays, the Manufacture has used a very rare system in watchmaking: a 90-degree return by means of the helical gear wheel, of the “endless screw” type. Sapphire In search of the perfect fusion between movement and case, Hublot engineers and chemists have researched and developed a transparent material which reveals the heart of the watch, all while being robust enough to effectively protect the mechanism. That’s how the Manufacture has become the expert of synthetic sapphire, a material from which it derives its aesthetic qualities that are unique within watchmaking – transforming each watch into a work of art.