Sato-sama Ritchie Explorer Compass

Blue dome compass, Ritchie Explorer model, with original box

Thank you for looking.
This belonged to my father.
The images show everything included. As it is an old item, there are dirt, stains, and scratches on both the main unit and the box.
Also, I have no knowledge of this item and do not know how to use it, but I suspect that the end of the cord is broken, as shown in the last image. The base could be removed, but the buttons are stiff.
I cannot determine if it is in working condition, so please consider it a junk item.

If you have any questions, I will answer them to the best of my ability, so please leave a comment.

Thank you.

Please note that I will reuse cardboard boxes for food and general merchandise for shipping. Thank you for your understanding.