RADO's bestselling collection is True Thin Line. Just 5 millimetres thick, it is the world’s thinnest ceramic watch. We interviewed the President of RADO Matthias Breschan who told us all we needed to know about the brand and about this particular range. Sleek case design and innovative materials are what set this luxury watches brand apart. Mr. Breschan explained that ceramic is hard, but also fragile. The challenge of creating this collection was to make sure that the case was thin enough, but also elastic enough so it would not break.