Cartier Tank Française ref. W51005Q4 large automatic watch in two-tone stainless steel and 18K yellow gold featuring a silver guilloche dial with Roman numerals, blued steel hands, and date display at 6 o'clock. Case measures 28mm x 32mm with an integrated two-tone bracelet marked "Stainless Steel" and "Swiss Made."

The Tank Française bracelet integrates seamlessly into the case with polished stainless steel links accented by brushed yellow gold center bars, creating the signature architectural continuity the model is known for. The silver guilloche dial is framed by applied Roman numerals and a fine minute track railroad ring, with blued steel sword hands providing sharp legibility against the silver ground. The sapphire cabochon crown on the right side of the case adds the signature Cartier finishing touch in deep blue.

The Cartier Tank Française was introduced in 1996 as a bold reinterpretation of the iconic Tank silhouette, distinguished by its integrated bracelet that flows directly from the case — a design language inspired by the tracks of a military tank. The two-tone steel and gold configuration became one of the most coveted references of the late 1990s and early 2000s, worn by celebrities and collectors alike as the ultimate statement of understated Parisian luxury. Cartier's mastery of precious metal and stainless steel integration in this model remains unmatched in the industry, with each bracelet link individually crafted to maintain visual flow from wrist to dial. The reference W51005Q4 represents the large automatic version, housing a self-winding movement behind a case that balances sportiness and formality. Collectors prize this specific reference for its generous case proportions, the warmth of the yellow gold accents against cool steel, and the timeless Roman numeral dial that has defined Cartier dress watches for over a century.