The X Series displays a self-winding movement that recharges automatically as you wear it. With a power reserve of approximately 40 hours and a movement frequency of 21600 times/hour, the X Series features compact and steady. The CIGADesign X Series integrates a patented automated mechanism embedded into a unique X-shaped skeleton – the core of the utmost sophisticated experience. The dual-shell structure, equipped with a high-performance sport utility vehicle suspension system, includes a four-angle spring distribution to unveil the all-new CIGADesign anti-vibration capability. With Luminous feature, a powerful look and even more stunning at nighttime, X Series Super-LumiNova is where your senses come awake. *Note : In order to enhance the natural brightness of pure silver, CIGA Design does not offer Super-LumiNova feature on the watches from its Silver collection.