Housed in a 35.1 mm 18K rose gold case measuring 8.83 mm thick, the Santos de Cartier WGSA0031 retains the distinctive square form and visible screwed bezel that have defined this lineage since its earliest iterations. A sapphire crystal protects the silvered opaline dial, where blued-steel sword-shaped hands mark the hours, minutes, seconds, and date. The 7-sided rose gold crown, set with a faceted sapphire cabochon, adds a characteristically Cartier finishing detail.
The watch runs on the self-winding Caliber 1847 MC, delivering automatic movement with hours, minutes, seconds, and date functions. Cartier's QuickSwitch clasp system and SmartLink bracelet adjustment allow the wearer to move between the 18K rose gold bracelet and the included black alligator strap — fitted with a rose gold folding buckle — without tools. Water resistance is rated to 100 meters / 10 bar.
This example is presented as a complete set with its original box and papers. The combination of a rose gold case, interchangeable strap system, and versatile 35.1 mm dimensions makes the WGSA0031 a considered choice within the Santos de Cartier medium-size range.
