Cartier Ballon Bleu de Cartier 36mm 18ct Pink Gold and Steel Watch W2BB0033. Stainless steel & 18ct pink gold 36mm case and bezel all on a matching two-tone steel & 18ct pink gold bracelet. This watch has a silvered guilloche dial with black roman numerals and blued steel hands. Water resistant up to 30m and sapphire crystal glass. Self-winding mechanical movement.