The Ronde Solo represents Cartier’s modern interpretation of their classic round watch silhouette, a design that has been part of their catalog for decades. This 36mm reference WSRN0012 is executed in polished 316L stainless steel, including the integrated bracelet which features a double-folding deployant clasp. The case maintains a slim profile, achieved through precise engineering of the movement’s dimensions. The silvered guilloché dial is a signature Cartier element, featuring black Roman numerals, including the distinctive “VII” signature, and a chemin de fer minute track. Sword-shaped blued steel hands provide high legibility against the textured background, and the synthetic sapphire crystal offers scratch resistance with minimal distortion. The overall finishing alternates between high-polish surfaces on the bezel and case flanks and brushed finishes on the bracelet links for visual contrast.
Powering the watch is the Cartier Calibre 115A, a Swiss-made quartz movement known for its reliability and accuracy. This movement requires minimal maintenance beyond periodic battery changes, making it a practical choice for daily wear. The Ronde Solo is intentionally designed without additional complications, focusing on clean time-only display, which aligns with the model’s heritage as an accessible entry into the Cartier collection. The case back is solid steel, engraved with the Cartier branding and reference information, protecting the movement while contributing to the watch’s slender wrist presence. The water resistance is rated to 30 meters, suitable for accidental splashes but not for swimming.
This particular example is in mint condition, showing no visible signs of wear on the case, crystal, or bracelet, indicating it has been carefully stored and seldom worn. It is accompanied by its official Cartier warranty card, which is a critical document for authentication and future service. The Ronde Solo in this steel configuration with a silver Roman dial is a consistently sought-after model, often serving as a first Cartier purchase for many collectors. Its position as a core collection model from a premier maison ensures its long-term collectibility. The combination of its classic design, robust construction, and full set of papers makes this a solid and exclusive opportunity for a collector seeking a pristine example of a modern Cartier staple.

