Cartier Ballon Bleu De Cartier Watch - 40 mm Pink Gold Diamond Case - Diamond Bezel - Diamond Dial - Brown Alligator Strap - WE90205540mm 18K pink gold case brilliant cut diamonds, 6. 9mm thick, sapphire back, 18K pink gold bezel brilliant cut diamonds, sapphire crystal, silver dial with brilliant cut diamond, manual winding movement with blue cabochon shaped sapphire, brown alligator skin strap, folding buckle. Water resistant to 30 meters.