The 1970s was a weird yet wonderful period of design. Bullhead chronographs, TV cases, new materials, and the notion that steel is a luxurious material all suddenly appeared. Without a doubt, the Tissot Sideral is one such wristwatch that helps categorise this period of design. Originally the Tissot Sideral line of watches had a monobloc casing composed of Bakelite and Fibreglass, and a 1971 edition in particular served as the inspiration for the Sideral's modren rebirth. To account for the five decade gap between the model's launches, Tissot chose forged carbon as its material of choice rather than a fiberglass-Bakelite combination.