Pre-owned Santos de Cartier ref WHSA0019 (2025). Cartier is somewhat new to the skeleton watch game, releasing its first watch with a skeleton dial/movement in 2009 via the Santos 100 Skeleton. Inside was the caliber 9611 Mc, the same movement powering the two-tone Cartier you see here. With this movement, the bridges cleverly serve as the brand’s famous Roman numeral hour markers, while still giving the wearer a fairly clear view of the various other components driving the hand-wound mechanical movement. Ref. WHSA0019 is a 40mm Santos de Cartier with a durable stainless steel case, sapphire crystal on the front and back, a stunning gold bezel fixed with steel screws, and a matching two-tone bracelet. Of course, it also has the collection’s signature heptagonal crown and faceted sapphire. Shop Cartier Watches Shop Cartier Santos De Cartier Watches