Rado Original (Aka Rado Diastar). Materials Leading Mechanics For The First Time In Precision Timepieces. Five Decades Ago Rado Revolutionized Watchmaking With The World's First Scratch-Resistant Watch. Today The Rado Original Incorporates Its Ancestor's Bold And Ageless Appeal As Only A True Classic Can Bearing The Distinctive Signature Of An Impressive Hardmetal Surface. Adding To The Watch Is A 3 Bar/30 Meters Water Resistance Rating.