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Craftsman
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You should post this over one the Watchmaker section of the forum for more answers. I would go on ebay and purchase a used 7s26c for parts and take what you need off that movement. I understand you can buy these movements brand new for around $40 so not sure what else to tell you. Based on your pictures, looks like the transmission wheel to the auto winding is damaged. You do not have a picture of the auto winding bridge so there may be other parts involved. Your pawl lever looks to be in good shape.

There is a specific setup to placing the auto winding weight on the 7s26. The pawl lever gear hole should be aligned with the balance cock pin in the bridge plate. The weight should then be place on the watch in a certain orientation per the technical guide.
 
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