The latest couple's tourbillon watches available online: Size 42mm and 36mm Cartier Ballon Bleu Tourbillon series. The fish-eye sapphire crystal and the best-selling white Roman numeral dial exude a fashionable and beautiful appeal. The movement of the tourbillon is clear at a glance, showcasing noble luxury. Water droplets: The fish-eye bubble double-sided sapphire crystal features a 316 stainless steel case with blue sword-shaped hands, and an original 316 stainless steel bracelet with a folding clasp. The Italian imported leather strap perfectly blends classic and innovative styles. The bottom cover includes a warranty card and tag with a three-in-one code, and it comes in independent packaging.