Their client was inspired by the Arolla glacier for the customization of his timepiece, a Rolex Cosmograph Daytona model. Artisans de Genève chose to embody the transparency of the glacier along with its unique blue hues through a sapphire dial and invisible gem-set bezel. The fusion of materials was the guideline of the “Arolla” Project and they blended the fragile and delicate sapphire with the rough finishings of the calibre 4130 movement to recall Arolla ice cave.