This is a Sunao Kuwahara wristwatch. It's quite old. I liked it and wore it back then. It's convenient because it also shows the date. I don't wear watches anymore, so I'm hoping someone will. The battery is dead, and the operation hasn't been confirmed. It worked when it had a battery. It's a size that can be worn by men. There are scratches, so I'm selling it at a low price.