Heir to over 150 years of expertise, the legacy of a long line of watchmakers, Grand Prix puts its stamp on Swiss watchmaking tradition. Bringing mechanical excellence together with fine craftsmanship, the new Superlative COSC beats to the tempo of an extra-thin, COSC-certified chronometer calibre. Its elegantly slim silhouette reveals a wealth of perfectly executed finishes which can be contemplated through the sapphire back. The dial deploys a sophisticated composition of contrasting circles around an intricately skeletonised central rosette, creating subtle textures against the elegant beauty of gold tones. Mirroring the applied hour-markers, mesmerising diamonds prolong this composition that culminates in a magnificently architectured two-tone bracelet.