The Tag Heuer Kirium series was launched in 1997 and marked the end of one era and the birth of another. The Kirium has a Liquid Metal look, with the case, bracelet and bezel all flowing into a single shape as if they were carved from the same block of steel. The bracelet was a return to simplicity, with its inter-locking links being far less complicated than the 6000-Series bracelet. While the watch is most commonly seen on its steel bracelet, the watch was also available with a vulcanized rubber strap, or a range of colored calf-skin straps.