Original Rado Diastar Automatic Islamic Blue Dial Unisex Watch, 35mm, Gold, 5 Inch Brand and Model: Rado Diastar (Rado DiaStar), also known as "The Original". Movement Type: Automatic (powered by kinetic energy, no battery required). Features: Oval gold bezel made of hard, scratch-resistant materials. Dial includes a day and date window at the 6 o'clock position. Crystal hour markers, with the famous rotating Rado logo