There isn't a brand in watches more associated with watch shapes than Cartier a company that has tended to set the general template for what one of its distinctively shaped watches is a Tank say or a Santos like the one
link here and then iterates on it endlessly. The Santos de Cartier is based on one of the earliest timepieces ever created for aviation and
link so the implementation of a chronograph into
link the design kind of makes perfect sense.