The birth of Orient Star dates back to 1951, when Tama Keiki Corporation was established and started operations at a watch manufacturing plant in what is now the city of Kuno, Japan, and was renamed Orient Watch Co. That year, the company name was changed to Orient Watch Co. The PR 50-hour version of the OS's top-selling model. Together with the skeleton design, it gave the dial a sense of depth. A modern design with an edge. It gives a powerful yet sharp and intelligent impression. The movement peeking out from the boldly cut dial is an in-house made movement. Although it is a skeleton, the layout that maximizes visibility and the design of the dial gives you the pleasure of wearing a mechanical watch. Made in Japan.