Good day! Is my Seiko 8M25-603A rare? It's been lying around my ancestral house and no longer working. I believe it was bought by my father in the 90s. Any idea about its history and value? Been searching Google and there are only a couple of post about it with minimal information. Also nobody sells it. I am quite young and don't know much about it. Don't know if I should make an effort to have it repaired/ restored or let it rest. Thank you!