Wakmann 8 Day aircraft clock

[Subsonic]

My 1956 Wakmann 8 day clock stopped running.  I wound it too much, thinking it had run down.  Runs intermittently now.  I can put slight pressure on the hand setting winder and it will start up.  Setting it on top of a toaster oven at about 150 deg. F gets it running pretty well and only stops occasionally.  Trying to get it to run long enough to get to the middle part of the mainspring wind/unwind cycle and see if it becomes reliable.  I was wondering if there's lubrication required, and how to do it.  The front glass/crystal is held in by a wire circlip, and I don't know how to remove that either.  I think that's the way to get into the movement.  Putting it in the freezer for a half hour completely stops it.

[HectorLooi]

It's a common misconception that a clock/watch can be over wound. I think it is sometimes perpetuated by clockmakers/watchmakers who are too busy to answer a customer's question of what went wrong with their timepiece. 

I think the lubricants in your clock has dried up and gummed up. Heat can temporarily lower the viscosity of the oil until the movement is able to run. But your clock would need a full service.

If you want to attempt servicing it yourself, there are plenty of competent clockmakers here to help you with the task. 

It would help if you posted some photos of your clock.

[Michael1962]

Welcome to the forum.

[Chiplight]

Is there a way to adjust the speed on my wakmamn 8 day clock it picks up about 5 min a day 

[HectorLooi]

If you look at the balance assembly, is there any adjustable lever on it to regulate the rate?

Have you done a complete clean and oil on this clock. Sometimes clocks run fast when the movement is dirty and the amplitude is very low.