What makes this watch possible is the Omega caliber 8511, which is a new variation of the 8500, without the rotor. That means this is a manually wound, highly finished version of the movement that not only features an 18k red-gold balance bridge, a Si14 silicon spring, a three-level co-axial movement, AND is resistant to 15,000 gauss of magnetism, as well as a COSC-certified chronometer, but because there is no rotor, you can actually see the whole thing too!