The Cartier Ballon Bleu ref: W4BB0009 features a stainless steel case with a diameter of 33mm. It is equipped with an automatic winding movement, ensuring reliable timekeeping. The watch showcases a silver dial, providing a classic aesthetic. This model is designed for those who appreciate precision and functionality in their timepieces. The reference number indicates its unique identity within the Cartier collection, making it a noteworthy addition for collectors.