Vintage IWC Schaffhausen Cal 8531 Swiss Automatic Watch 34mm NOS Box Tag

IWC made a bold declaration: they would create some of the finest watches ever manufactured. This 1959 example, powered by the legendary Calibre 8531. The Calibre 8531, introduced in 1958 as the date-equipped evolution of the celebrated 853, embodies this technical mastery. At its heart lies the famous Pellaton winding system—a marvel of mechanical engineering that converts the rotor’s revolutions into oscillating movements via an eccentric, heart-shaped cam. Two offset pawls alternately pull the winding wheel, ensuring that every micro-movement of your wrist contributes to keeping the watch wound. It’s efficiency in its purest form. This NOS watch comes with the original box and store tag.