High-tech ceramics, sapphire crystal, black matt, Quartz Chronograph movement, Date/Second, available in XL-size. About RADO True: Rado True embodies two new technologies which for the first time in watch making history allows the creation of two new ways of expressing the beauty and luxury of high tech ceramics: satin brushed high tech ceramics and decorated high-tech ceramics. All RADO watches have a two year international warranty.