Grey represents calm. With the darker grey shades, objects and surfaces can be placed into the background and into shadow. These colours develop their best effect in a shady environment. Iron Grey is soft, warm and expressive. It is the darkest shade of 1931.

Inspired by the enduring, relevant and significant colour theory created by Le Corbusier in 1931 and 1959, this True Thinline collection celebrates the Architectural Polychromy. Still used by designers and architects all around the world, only Rado can produce these colours in high-tech ceramic. These watches are light, slim, scratch-resistant, hypoallergenic and bursting with vivid and vibrant colour energy.