I have two mantle clocks, one an american time and strike movement and the other one a french movement. I have been working on them for quite a while trying to get them to keep time. i get close over the course of the week, then I wind them and it seems like i'm back to square one. it fluctuates between too fast and too slow. Is there anything I can do to make it more consistent? the customer is very insistent that it keep good time.
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