Discover Richard Mille's precision with the Tonneau (ref. 501.04.91), a refined timepiece that blends thoughtful design with reliable performance. A study in proportion and durability: crafted in red gold, with a thickness of 11.95 mm, defined by a tonneau silhouette. The caseback is open, and the crystal is sapphire, delivering water resistance to 3000 meters. The dial composition is deliberate and legible: a grey tone, executed in carbon, framed by arabic numerals hour markers, and stick hands. Among collectors, it is nicknamed "Anthracite". Beneath the caseback lies dependable performance: the RM002-V2 caliber. 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.