Ballon Bleu de Cartier
A round watch where the crown, with a blue cabochon, is protected inside an arc of the case.
The Ballon Bleu came out in 2007 and quickly became one of Cartier's most popular models. Its rounded form differs from the angular Tanks.
Materials: Steel or gold; self-winding or quartz movement
Manufacture: Made in Switzerland.
The blue crown inside an arc on the side.
The domed case and the Roman numerals.