Cartier, Ballon Bleu, model: WE902077, automatic mechanical, stainless steel, 18K rose gold, diameter: 33mm, all under warranty. The iconic Ballon Bleu design features a case and strap made of stainless steel and 18K rose gold interlaced gold, with a crown guard set with synthetic spinel, making it highly recognizable. It features an inner and outer double-ring original diamond configuration: the bezel is set with a circle of brilliant-cut diamonds, and diamonds are also set at the 12 hour markers on the dial. It is paired with a silver-white radial dial and blue steel hands, presenting a luxurious yet elegant look. The 33mm diameter is a popular size for women to wear. The combination of gold and diamonds is more luxurious than the ordinary model and also has greater collectible value..