6105-8110 Needs Cleaning

[norseman]

I have a 6105-8110 Seiko that my wife purchased for me in 1977. I wore it when SCUBA diving in the 70's and 80's then only occasionally worn until about 25 years ago. It is all original and was serviced once. It runs but will stop if not wound after a few hours. I think it really need a good service so I haven't worn it as I am afraid that it will harm the mechanism since it might need cleaning. A few years ago I bought a good quality repro strap of the original design. I see that these watches seem to have some collector interest and might consider selling it rather than see it sit in a drawer unused but I would rather have it cleaned and running properly. Is there anyone who specializes in servicing these old Seiko's in Canada.