Introducing the marvelous GSTB400X-1A4, the latest addition to the sleek G-STEEL GSTB400 series. Prepare to be captivated by its cutting-edge features. The GSTB400X-1A4 boasts a remarkable carbon bezel that perfectly balances lightness and durability, crafted from a unique amalgamation of carbon fiber reinforced resin and carbon sheets. This impeccably crafted timepiece exudes an aura of sophistication, featuring a hypnotic black resin band and a striking black IP case adorned with eye-catching dashes of fiery red. The revolutionary GSTB400 embraces unparalleled innovation, achieving unprecedented compactness in its components and svelte modules, all without compromising its Bluetooth or solar capabilities. Witness an extraordinary reduction in power consumption, making this striking piece of art a true embodiment of excellence.