About a month ago my Mom found in her things my Seiko I had left at here house during a visit 20 plus years ago and we had both forgotten all about it. I believe I bought this in 1975 or 76 don`t remember for sure.It still runs but I believe it needs a cleaning. It makes one second hand rotation then stops a 12, shake it and it makes a full rotation again then stops a 12.
Any help from the experts would be appreciated. I would like to sell it and need to know as much about it. Steve