Rado R27086162 True Square Automatic Open Heart Unisex Watch Online. At Rado, we made our name producing square high-tech ceramic watches. The True Square is a new take on an iconic Rado shape. Our first watch made using a square injected monobloc high-tech ceramic case, the True Square is light, scratch-resistant and comfortable to wear. Distinctive and design-led the Rado True Square Automatic Open Heart is the shape of things to come.