Luxury French watch brand Cartier is arguably one of the most recognisable watch brands in the world due to their signature shapes, blue Roman numerals and crowns set with Cartier's signature deep blue cabochon sapphires that span many of their collections. Amongst many of their reputable feats, the Maison was responsible for the world's first modern wristwatch in 1904, the Santos, driven by advances in aviation and the Brazilian pilot Alberto Santos-Dumont. Cartier has since developed its own range of in-house watch movements and has led the way in creative watchmaking and developing iconic shapes as its signature.