This is a rare Tissot Astrolon from 1971 in New Old Stock condition. The very first antimagnetique plastic watch in the world, which was the result of a revolutionary process by tissot for over a decade. This example comes in museum quality. Absolutely untouched 39 x 45 cm case with all original parts and perfectly working handwound caliber 2250. A historical important addition to a watchcollection and maybe even the most important watch in plastic that has ever been built, allready 12 years before the first swatch has been released with a quartz caliber.