Cartier Santos Dumont 18ct Rose Gold Extra-Large Strap Watch WGSA0032. 18ct rose gold 46.6mm x 33.9mm case and bezel all on a gray alligator leather strap. This men's watch has a satin-brushed silver dial with black roman numerals and blued steel hands. Water resistant up to 30m and sapphire crystal glass. Manual winding movement.