This is a CITIZEN "Crystal Seven" automatic wristwatch, a masterpiece. It's a mechanical model with a 21-jewel movement and day-date display. The case diameter is approximately 40mm, a substantial men's size by the standards of the 1960s and 70s. It is not a small-diameter model or a ladies' size. Currently, it has a light pink aftermarket new leather strap, allowing you to enjoy a light and airy feel suitable for spring. The strap can be customized to your liking, assuming replacement. The dial is silver and in relatively good condition. There are minor scratches on the crystal. The case and back cover have minor scratches and scuffs commensurate with their age, but it is in good condition for a vintage item. It is currently running, but we do not guarantee its daily accuracy or precision. Please consider this item only if you understand vintage mechanical watches. Offered for sale to organize my collection.