The Cartier Santos de Cartier Large Model Ref. WSSA0071 is a masterful demonstration of the Maison’s legacy in luxury watchmaking, blending the pioneering aviation spirit of Alberto Santos-Dumont with contemporary allure . This iconic timepiece features a 39.8mm stainless steel case with a sleek 9.38mm profile and a striking graduated blue dial, elegantly complemented by polished steel sword-shaped hands with luminescent material and classic Roman numeral hour markers on a railroad minute track . The seven-sided crown is adorned with a synthetic faceted blue spinel, a signature touch of Cartier’s refined sophistication . At its heart beats the in-house automatic Caliber 1847 MC, a movement with 23 jewels that delivers reliable precision and a 42-hour power reserve, visible through the sapphire crystal caseback . Designed for modern versatility, the watch features Cartier’s innovative QuickSwitch interchangeable system, allowing effortless transitions between the steel bracelet with SmartLink adjustment and the additional blue alligator leather strap included with the timepiece . With a robust 100-meter water resistance (10 ATM), the Santos WSSA0071 combines the elegance of a dress watch with the durability of a daily companion . Originally inspired by Louis Cartier’s 1904 creation for the famous Brazilian aviator, this large model continues the collection’s century-long tradition of innovation and timeless design, making it an exceptional choice for discerning collectors who value both heritage and contemporary aesthetics . Key specifications: 39.8mm stainless steel case; graduated blue dial with Roman numerals; Cartier Caliber 1847 MC automatic movement; 42-hour power reserve; interchangeable steel bracelet and blue alligator strap; 100m water resistance; sapphire crystal front and exhibition back.