Cartier Tank Americaine Chronoflex in 18k. Quartz w/ sub-seconds, date and chronograph. Ref W2601156. Circa 2000s. Fine Pre-owned Cartier Watch. Certified preowned Dress Cartier Tank American W2601156 watch is made out of yellow gold on a Gold Link band with a 18k Hidden buckle. This Cartier watch has a 26 x 36 mm case with a Rectangle caseback and White Roman Numeral dial. Circa: 2000s . It is Gray and Sons Certified Authentic and comes backed by our 12-month warranty. Each watch is inspected by our certified in-house Swiss-trained watchmakers before shipment including final servicing, cleaning, and polishing.