The power of the blue glow
With its contrasting black or white dial, the Explorer II has a sleek face that is easy to read in any situation.
The Chromalight display provides optimum legibility, whatever the light conditions. The luminescent material applied to the numerals, hour markers and hands is a brilliant white in daylight and emits an intense blue glow in the dark.
The Chromalight display, exclusive to Rolex and introduced in 2008, was optimized in 2021 to maintain the intensity of the blue glow for longer. The performance of this luminescent substance clearly exceeds the standards required by watchmaking norms.
The result of a complex manufacturing process, this material is obtained by firing an ultra-fine powder – composed of various metal oxides – at a high temperature and then mixing it with liquid resin. The hands, numerals and hour markers are either coated or filled with the material by hand. This operation requires great precision in order to perfectly dose the quantity of material and obtain a uniform result that meets Rolex’s criteria of excellence.