The Rolex Submariner replica watch‘s unidirectional-rotating 60-minute graduated bezel is now enhanced with a black insert made of virtually scratchproof, non-fading, corrosion-resistant ceramic that Rolex calls Cerachrom. The graduations are coated in a PVD process with a thin layer of platinum. The hour markers and hands on the sleek, black dial are filled with Rolex Submariner Replica swiss movement proprietary Chromalight luminescent material, which emits a blue glow that the company claims lasts twice as long as that of other luminous substances used on watch dials.