The true thinline lta tennis exclusive is the thinnest ceramic watch that rado has ever produced with the cases of the quartz models measuring a mere 49 millimeters hailed as a marvel of engineering when it was first unveiled in 2011 the rado true thinlines elegant simplicity is powered by an unbelievably thin movement of just 1mm though they may look delicate this unisex rado true thinline timepiece still boasts the same durability and scratch resistance as rados other high tech ceramic