The Cartier Santos is a distinguished watch collection by Cartier, recognized for its square case, exposed screws on the bezel, Roman numeral dial, and often a blue cabochon crown. Originally designed for aviator Alberto Santos-Dumont in 1904, the Santos collection has become an iconic representation of Cartier’s blend of classic elegance and innovative design. For the latest models and detailed information, it is advisable to check Cartier’s official website or consult with authorized Cartier dealers.