Introducing Cartier Rotonde de Cartier (ref. W1556222), a distinctive model that balances proportion, precision, and presence. On the wrist, the case feels purposeful: crafted in platinum and measuring 47 mm in diameter, with a thickness of 16.65 mm, defined by a round silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 3000 meters. Visually, the face is where character emerges: a blue tone, executed in lapis lazuli, framed by roman numerals hour markers, and breguet hands. Mechanically, the watch prioritizes accuracy: the 9440 MC caliber. Released in a constrained run, appealing to focused collectors. First released in 20132016. The silhouette offers presence without excess, lending confidence in a range of situations. Finishing showcases disciplined attention to detail across facets, edges, and surfaces. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.