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I'm refurbishing and servicing this this 6309-547A. All of the crystal databases don't list this specific model…. but from what I can tell, I think the crystal that would fit is the BA0W97LN00…
Has anyone dealt with this before? It seems like there are multiple references of the same type (7019-512L, 6309-601A, etc) but none of them have corresponding crystal serials that I can confirm. If I can find a seiko crystal database that gives the full dimensions that would be immensely…
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