Gold 50 The latest masterpiece Rolex Day-Date 40m 21st Century Series Watch! 1Classic 904L case with optical outer ring! 2. Mirror material - anti-scratch blue crystal glass, anti-reflective convex magnification (2.5 times) calendar window 3. [Watch strap] equipped with electric nano-electric transfer technology, arc five rows of links, 4. buckle type folding buckle, Concealed folding crown buckle! 5 Equipped with imported 2836 movement,