Brand New Authentic Rado True Square Open Heart X Ji Chang-wook Limited Edition Black Dial Ceramic Unisex Dress Watch Model R27174712. Matte Ceramic case with Matte Black Ceramic watch band. Titanium Folding clasp. Fixed bezel. Dial description - Luminous Silver Tone Hands and Crystal Hour Markers with Minute Markers Around the Outer Rim on a Open Heart Black dial. Swiss Automatic movement. Powered by Caliber R734 engine with 80 hours power reserve. Watch functions - Hour, Minute, Second, Power Reserve. Push-Pull crown. Scratch Resistant Sapphire crystal. Square case shape. Case size - 38mm. Case thickness - 9.70mm. See-Through Case Back. 50 Meters - 165 Feet water resistant. 5-year WatchMaxx warranty.