The Cartier Santos, reference WHSA0028, features a stainless steel case with a diameter of 40mm. This model is powered by a manual winding movement, specifically the 9611 MC caliber. Introduced in 2022, it showcases a skeleton design that reveals the intricate workings of the watch. The combination of these elements offers a modern take on a classic style, appealing to those who appreciate both functionality and aesthetic transparency.