Bianchet has introduced the B 1.618 Grande Date Sapphire Edition, a timepiece that redefines transparency and elegance in haute horlogerie. The B 1.618 Grande Date Sapphire Edition stands as a testament to Bianchet's dedication to innovation and craftsmanship. For the first time in watchmaking history, a case seamlessly combines sapphire crystal with rubber, an achievement that underscores the brand's mastery of material innovation. Sapphire, a material only second to diamond in hardness, presents significant challenges in machining and finishing. Yet, Bianchet's design team has ingeniously integrated rubber seams into the construction, retaining the brand's signature aesthetic with two rubber gaskets that underline the purity of the case's design. This pioneering combination reaffirms Bianchet's brand identity as fusing precious materials with cutting-edge technology.