A classic, refined sense of time for today's man from Cartier... Must Tank Solo men's watch is elegant, sophisticated and masculine. Updated contemporary lines evoke the spirit of legendary designs first created by Cartier in the early Twentieth Century. Handsome, polished 18K yellow gold tank case is presented on the attractive black alligator strap. Polished gold bezel frames the rhodium colored dial with blue hands and black Roman numeral hour markers. . Granular decorated crown is topped with a blue sapphire cabochon. Alligator strap is accented with the signature Cartier 18K yellow gold buckle.