Honoring science. The pioneering anti-magnetic watch comes with a Z-blue dial, an exclusive electric blue, only available on the Milgauss as well as the signature orange lightning-bolt-shaped seconds hand. The Rolex Milgauss is truly the scientist’s watch. - The Oyster Perpetual Milgauss in Oystersteel sports a Z-blue dial, an orange seconds hand and a green sapphire crystal. Unique aesthetics and scientific heritage combined in 40mm.