Seiko 6309 Not Winding

[patrick_ford]

What would cause a Seiko 6309-7049 to run for about 30 seconds and then stop after getting a decent seiko shake? The hands and day/date wheel move smoothly and the watch has no signs of unusual wear.

I know this watch needs servicing, but would that explain why it seems to have no power reserve, or could it be a more serious issue that is not obvious to me? I have never had an automatic watch this old before.

Thanks!
Patrick

[CarloDWC]

Dirt in the movement, oil dried out, you don't say if it is a new thing, if it was running for 30 hours yesterday and today only 30 seconds, or it never ran. etc. If it needs servicing then that's your answer...

[River Rat]

Could be the rotor not rotating to wind it. Had that happen to a few watches. When you shake it if you don't hear the rotor moving that it.