Vintage SEIKO Standard The roots of Grand Seiko It's a Crown. Mechanical, hand-wound. Currently running, but I feel like the operating time is short. It stops in about 6 hours. The time seems to be accurate. It is possible to use it by winding it frequently, but I recommend an overhaul (OH) once. The back cover engraving is faded. Slight dent. Since it is old, there are many scratches overall. The dial is not clean either. Please purchase if you are satisfied with the photos. The band is a leather NATO type, just a bonus. (The condition is not very good.) Lug width 19mm With your current understanding, I hope you will disassemble and maintain it and use it for a long time.