For sale due to collection reorganization. This is a 1970 July model 56KS King Seiko Chronometer. The overhaul history and timing are unknown. Currently, it is running normally. Daily rate on a flat surface is approximately ±30 seconds. Sometimes the crown doesn't pull out quite right. We recommend an overhaul. There are minor scratches on the crystal and case. The KS crown and KS medallion (CHRONOMETER marking) are both clean. The watch has been fitted with a new aftermarket leather strap for the sale. This is an antique watch from over 50 years ago. Please purchase only if you understand the accuracy and other characteristics of vintage watches. Production year: July 1970 Model: 5625-7060 Movement: Automatic (with manual winding) Frequency: 28,800 bph (8 vibrations) Date display Quick date change function (pull the crown out one step and rotate downwards) Seconds hand stop function The 56 King Seiko Chronometer is the first Japanese automatic watch to receive "Chronometer Official Certification." With official certification, it became possible to officially mark "CHRONOMETER OFFICIALLY CERTIFIED" on the dial as a world-standard "CHRONOMETER." The case is a one-piece case design to increase water resistance. An external fine adjustment device is equipped on the 5 o'clock side of the case. The back features a KS medallion with "CHRONOMETER" marking. #KingSeiko #56KS #RoadMarvel36000