Cartier Tank Louis Rose Gold Mechanical Mens Watch WGTA0011. Manual winding movement. 18k rose gold case 25 mm x 33 mm. Circular grained crown set with a blue sapphire cabochon. . Scratch resistant sapphire crystal. Silvered guilloche dial with black Roman numeral hour markers and an inner minute track. Sword shaped blued hands. Secret Cartier signature at VII. Brown leather strap with 18K rose gold tang buckle.