Cartier Ballon Bleu de Cartier Watch - 36 mm Yellow Gold Diamond Case - Silvered Sunray-Brushed Dial - Interchangeable Bracelet - WJBB0070 steel-and-yellow-gold while 18K Sedna™ gold is

while 18K Sedna™ gold is used for the hands as well as the indexes

18K pink gold fluted crown set with a blue synthetic spinel cabochon

screw-down crown with triplock triple waterproofness system

38 mm stainless steel case

bright black dial

Cartier Ballon Bleu de Cartier Watch - 36 mm Yellow Gold Diamond Case - Silvered Sunray-Brushed Dial - Interchangeable Bracelet - WJBB0070 steel-and-yellow-gold while 18K Sedna™ gold is36 mm 18K yellow gold case set with 54 brilliant cut diamonds, 12. 1 mm thick, fluted crown decorated with a cabochon sapphire, sapphire crystal, silvered sunray brushed dial, automatic movement, interchangeable 18K yellow gold bracelet. Water resistant to 3 bar (approx 30 metres).