Launched in 1906, just a short two years after the Santos Dumont, the Cartier Tonneau is a stunning barrel-shaped timepiece that draws direct inspiration from the Art Deco movement. Named “Tonneau,” meaning “Barrell” in French, the Tonneau’s gently curved mid-case bellows out from its narrow lugs in a rather attractive manner. Constructed of 18k white gold, this example conforms to the wrist with its curved profile resulting in a wonderfully comfortable wearing experience. Containing perhaps one of Cartier’s most iconic design elements, this example features a silver dial with two individually-powered displays, each featuring large black Roman numerals and Cartier's signature blued steel hands. Of course, it is quite clear that this incredible timepiece is not just any Tonneau Dual Time. Instead, it is a diamond-set feast for the eyes with two diamond-set crowns, which replace Cartier’s typical blue sapphire cabochons, and a diamond-set bezel filled with brilliant-cut diamonds. An incredibly luxurious timepiece from one of the world’s best-known jewelers and watchmakers, what’s not to like?

An iconic piece of Cartier design that would go on to influence several collections throughout Cartier's heritage, the Tonneau stands as a celebration of Cartier's uncanny ability to create beautiful designs that would go on to become timeless.