Experience the craft of Cartier in the Rotonde de Cartier (ref. W1556217), a contemporary classic shaped by careful watchmaking know-how. The exterior is thoughtfully executed: crafted in pink gold and measuring 40 mm in diameter, with a thickness of 12.15 mm, defined by a round silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 3000 meters. At a glance, the dial balances texture and clarity: a silver tone with guilloche finish, framed by roman numerals hour markers, and breguet hands. At its heart beats a proven engine: the 9422 MC caliber. First released in 2012. With considered ergonomics, it feels composed during extended wear. Brushed and polished elements play with light to emphasize crisp geometry. For buyers researching specifications and real-world impressions, this reference stands out for coherent design, dependable mechanics, and lasting relevance within modern horology.