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A got this elgin movement the bottom balance jewel broke a got few jewels assortment here on me  but a don't know if the jewels are replaceble with this type movement does anyone know what to do?

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the balance jewel shape is different than the plain train wheel jewel, it is olive holed and curved on the side that lays next to the cap jewel, look at the jewel in the balance cock/bridge to see the difference or the escape wheel that is missing the cap jewel should be curved, a jewel can be fitted if one is on hand with a jeweling tool/press but would be easier to replace whole setting......a donor movement might be the way out for speed/cost.......

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