Introducing Cartier Calibre de Cartier (ref. W7100004), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: crafted in pink gold and measuring 45 mm in diameter, with a thickness of 13.3 mm, defined by a round silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 10000 meters. The dial composition is deliberate and legible: a silver tone with guilloche finish, framed by mixed hour markers, and sword hands. Beneath the caseback lies dependable performance: the 9907 MC caliber. Introduced in 20102012. Comfort and balance define the wearing experience, making it an easy daily companion. Subtle transitions between textures elevate the overall impression. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.