Overstock Watches, Some of Tissot's triumphs over the years include the the Idea 2001 (the world's first plastic watch) released in 1971, the Rock watch (which set the timepiece's movement in a stone case made from Swiss Alps granite) in 1985, and the Wood watch from 1988 (with a completely wooden case). Tissot uses the best movements (from ETA SA Manufacture Horlogère Suisse), the highest quality materials (316L steel, 18K gold, titanium) and scratch-proof glasses (sapphire crystal--at least 2500 Vickers).
