Richard Mille is not original but is a worthy upgrade to the original at a price of less than 1% of the original price, with 100% matching specifications, including ceramic and titanium, RMLU2 movement with a free sprung balance wheel, all its parts are titanium with double Swiss sapphire glass inlaid with fluoro-chromalite. Go with it to the Richard Mille boutique and proudly show them your original watch with complete confidence. Features: Water Resistant Brand: Rolex Material: Titanium Watch Size: 40mm Movement Type: Automatic