Rado watch ceramica r21808152 with strong lines and gently curved silhouettes these three new ceramicas are ideal for fans of minimalism following the success of the two matt ceramicas that were unveiled last year another model in matt black high tech ceramic has been added to the collection for a softer look that is no less visually compelling two models in grey high tech ceramic are also available the polished grey version features the same super luminova indexes as its matt black count