Powered by Cartier's automatic mechanical calibre 1847 MC, the Santos de Cartier WSSA0010 houses its movement in a 35.1 mm steel case measuring 8.83 mm thick. The seven-sided crown is set with a faceted synthetic spinel, while a sapphire crystal protects the silvered opaline dial below. Water resistance is rated to 10 bar (approximately 100 metres).
Two bracelet options are included in the box: a steel bracelet equipped with Cartier's SmartLink resizing system, and a calfskin strap fitted with a steel double adjustable folding buckle. Both options share the QuickSwitch interchangeability system, allowing the wearer to swap between them quickly and without tools.
Reference WSSA0010 sits in the medium Santos de Cartier configuration, carrying forward the architectural lines and exposed screws that have defined the model since its original introduction. Steel construction runs throughout the case and bracelet, keeping the overall presentation consistent and understated.
