Cartier Ballon Bleu de Cartier Watch - 36 mm Steel and Yellow Gold Case - Silvered Dial - Interchangeable Two-Tone Bracelet - W2BB0030 B15 nine-sided crown set with a

nine-sided crown set with a sapphire

This model features a 42 mm steel and titanium case with a black dial and matching alligator leather strap

20mm x 25mm 18K yellow gold case

8 mm 18K pink gold case

openwork satin-brushed grid with sun ray finish

Cartier Ballon Bleu de Cartier Watch - 36 mm Steel and Yellow Gold Case - Silvered Dial - Interchangeable Two-Tone Bracelet - W2BB0030 B15 nine-sided crown set with a36 mm steel case, 12. 1 mm thick, fluted 18K yellow gold crown set with a synthetic cabochon shaped spinel, sapphire crystal, silvered guilloche dial, automatic movement, interchangeable two tone bracelet. Water resistant to 3 bar (approx 30 metres).