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A7750 shock spring replacement


forp891

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Low beat or high beat movement? ETA shock springs are interchangable with the 28.8K A7750's, but not with the Low beats movements. The low beat uses a smaller jewel setting. I had a shock spring break on me, from a 21.6K A7750 and spent a hour looking at scrap movements for a replacement. Could not find anything...I ended up machinging the top plate jewel setting hole bigger and installing a high beat A7750 jewel setting I had. Work beautifully! :thumbsupsmileyanim:

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