The Casio GW-5000U-1 is a G-SHOCK watch that combines the original 1983 design with modern technology. It features a solid metal case with a screw-back, both treated with Diamond-Like Carbon (DLC) coating for enhanced durability. The watch is equipped with Multi-Band 6 radio-controlled timekeeping, receiving signals from six stations worldwide, and is powered by Casio's Tough Solar system. Additional features include a Super Illuminator LED backlight, 200-meter water resistance, and a soft urethane resin band for comfort. Reference number: GW-5000U-1ER.