Rare Vintage Seiko Super Chronometer 1131 Classic Dress Sports Watch JDM 1950s

Up for sale is a rare vintage Seiko Super Chronometer men’s classic sports watch, reference 1131, produced for the Japan Domestic Market (JDM) during the 1950s. This early Seiko represents an important chapter in the company’s history, featuring a high-grade Seikosha movement adjusted in three positions and bearing the desirable “Chronometer” designation on the dial. The watch is currently running but gains approximately five minutes per day. It would benefit from a service to properly regulate the movement and restore more accurate timekeeping. It is therefore being sold as a running watch that should be serviced. The watch is fitted on an aftermarket stainless steel bracelet. All other parts of the watch are original. The watch has signs of use and age consistent with a vintage timepiece. The photos best describe its physical condition and should be reviewed carefully prior to purchase. Key Details: * Brand: Seiko * Model: Super Chronometer * Reference: 1131 * Era: 1950s * Market: Japan Domestic Market (JDM) * Movement: Manual Wind Mechanical * Bracelet: Aftermarket stainless steel bracelet * Condition: Currently running but gains approximately five minutes per day. A service is recommended to properly regulate the movement. Signs of use and age. A scarce and historically significant early Seiko that would make an excellent addition to any serious vintage Seiko collection. Ships carefully. Feel free to message me with any questions.