The Cartier Santos de Cartier Skeleton Watch (Ref. WHSA0021) is a sophisticated timepiece that showcases the brand's commitment to precision and style. Featuring a 39.8 mm stainless steel case, this watch offers a clear view of its intricate mechanical movement through the skeleton dial. The manual-winding Caliber 9611 MC movement provides a power reserve of approximately 72 hours, ensuring reliable timekeeping. The watch is water-resistant up to 10 bar (approximately 100 meters), making it suitable for everyday wear. It comes with a stainless steel bracelet equipped with the "SmartLink" adjustment system and includes a second strap in calfskin leather, both easily interchangeable thanks to the "QuickSwitch" system. This timepiece embodies the elegance and innovation that Cartier is renowned for.