Cartier Ballon Bleu 42mm Stainless Steel, Silver Guilloché and Lacquered Opaline Dial with Roman Numeral Hour Markers, Blued Steel Sword-Shaped Hands, Black Roman Numerals and Indices Hour Markers, Fluted Crown Set with a Cabochon Synthetic Spinel, Self-Winding Automatic Movement, Black Alligator Leather Strap with Stainless Steel Fold-Over Deployant Buckle. 

The 42mm diameter solid three-body case, integral downturned lugs, and rounded bezel are polished. The dial is silver Opaline guilloche with painted black Roman numeral hour markers on a plain reserve, the Cartier secret signature on the VII, and a raised inner minute/second track. It has sword-shaped blued-steel hands, a centered sweep seconds hand, and an oval date aperture window at 9 o’clock. It’s water resistant to 30 meters/100 feet, and the 13mm thick case, dial, and movement are all signed. 

This Cartier Ballon Bleu reference WSBB0026 has a mechanical automatic self-winding Cartier 1847 movement. It’s rhodium-plated with fausses cotes embellishment. It has a shock absorber mechanism, a straight-line lever escapement, and a monometallic balance. It includes a self-compensating flat balance spring, and a hacking seconds mechanism for precision time setting.

Reference No.  W4SA0005