I bought this Elgin watch today at a local clock show. I need so clues as to what model and era thjis watch is. It is an Elgin, says Non Magnetic on the face. Inside it has Elgin watch co., 13-8, seven jewels. Also says unadjusted and Swiss. Where you adjust the speed, it has AF stacked and the other side it has RS. I know the F and S mean slow-fast, but unsure of the AS letters. I'm trying to get a model for it so I can find the bigger winding gear, as it is missing teeth. I went on the pocket watch data base page and there's nothing there I could find. Looks to be a 12S. It runs
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