A Diamond and 18K Gold 'Tank Americaine' Watch, CARTIERWith automatic movement, the cream guilloche rectangular dial with Roman numerals, window for date, secret signature at seven and blue steeled hands, to the circular-cut diamond bezel and lugs extending an integrated round brilliant-cut diamond link bracelet and deployant buckle; signed Carter, nos. 1725, CC826093; with French maker's mark and Swiss assay mark; length 7 1/4 in.