The Cartier Santos is a renowned watch collection by Cartier, recognized for its square case, exposed screws on the bezel, Roman numeral dial, and often featuring a blue cabochon crown. Originally designed for aviator Alberto Santos-Dumont in 1904, the Santos collection combines a classic aesthetic with innovative design elements. For the latest models and detailed information, it’s recommended to check Cartier’s official website or visit authorized Cartier dealers.