To the Admin; not sure if this would be better in the Watchmaking and Repairs section. If so, feel free to move it.
My Dad dug out this old Summit Automatic which belonged to my Grandfather. I know it's not worth anything in financial terms, but I'd like to get it restored as much as possible, for sentimental reasons. The movement (AS 1700) is fine as far as I can tell, but obviously needs a service. The whole watch was filthy, but has cleaned up well. Now to the problems.
One of the spring bars was Superglued in place, as the lug is so badly damaged. Looking at it, could it be that someone has attempted a repair (with solder?) in the past? All four are damaged or worn to some extent, but this is the worst (from front and back):
I would appeciate the advice of any of you regarding repair. Can it be done? If so, how? Is it a DIY job, or best left to the experts?
Also, I've no idea where to get replacement seals or gaskets for the case back and the crown. These aren't the usual o-rings. The one on the back is a flat plastic gasket 30 mm i.d. 31mm o.d. and 0.25mm thick.
The one on the crown (the dark orange part) is 2mm i.d. 3mm o.d. and approx. 0.7mm thick, hard plastic or resin.
Are these standard parts, and still available somewhere, or can they be substituted by modern seals e.g. o-rings?
Any tips, recommendations or encouragement very much appreciated!