Unique and precious dials are manufactured from an 18 ct gold alloy specially developed by Rolex in its own foundry. They undergo a particular surface treatment which reveals, as if by magic, the crystals in the metal. The phenomenon produces veritable natural works of art, each dial totally different from another. This process gives rise to exuberant dials whose many-faceted gold crystals reflect the light in a myriad of glistening variations with the changing angle of observation.