Pre-owned Cartier Ballon Bleu de Cartier ref W69012Z4 is an elegant play on shapes. The case has a traditional round shape yet houses a tiny bubble inside the bezel for a crown. Whereas most other watches would place the crown on the outside of the bezel, this design protects it and gives the watch a unique and distinctive aesthetic, hence the name “Ballon.” Ref. W69012Z4 is a 42mm stainless steel model with a matching silver guilloche dial, a silky H-link bracelet, and a self-winding mechanical movement. The iconic Cartier Roman numeral hour marker circles the dial alongside sword-shaped hands and a convenient 3 o’clock date display. Shop Cartier Watches Shop Cartier Ballon Bleu Watches