Introduction: Since its establishment in 1930, CITIZEN has always adhered to the concept of multiculturalism, persistently pursuing excellence and committed to innovation. As one of the world citizens, it is our responsibility to use our craftsmanship to promote the positive development and continuous evolution of world culture. We take it as our own responsibility and will steadfastly embrace all opportunities and challenges in the future. As a professional comprehensive watch manufacturer, Nishitetsu's watchmaking process comprehensively covers every step from single component manufacturing to the final assembly of the watch. We use craftsman like techniques to manufacture watches, constantly expanding the boundaries of technology, and utilizing our rich experience to explore new possibilities. Looking back at 84 years of history, we have repeatedly set new records. We were the first to develop radio wave technology, satellite timing technology, and revolutionary optical kinetic energy technology. As early as 1976, West Rail was the first in the industry to develop this innovative technology. By utilizing any visible light source to convert electrical energy, this extraordinary innovative technology has completely changed the way watches are driven. Optokinetic watches do not require frequent battery replacement, especially in areas where batteries cannot be obtained in a timely manner. This allows citizens of every country to freely experience the joy of wearing and using a Seiko watch, leaving unforgettable memories of time.