Seiko 7018 One-Eyed Chronograph, made in October 1981.
It is not widely known that this chronograph had the worlds thinnest movement until the 1980s. There is almost no dial or hand burn. There are no problems with the chronograph, flyback, or calendar. It is in good working order. The original belt is about 17.5 cm long. It is circular, so please consider it as a guide. Seiko Vintage 5Sports Five Sports 6119 6139 6138 Antique Chronograph Automatic Speed Timer Speed Master Recommended for those who like this kind of thing.