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Posted

Hi. What would be the fault if the watch keeps good time but once the position of the movement has changed, the watch loses time until back up to normal position (hands upwards)

Posted

The can be many reasons, from poor lubrication, to hairsping not concentric, incorrectly shaped, Etachron pin (if present) not correctly adjusted, worn or went pivot, cracked jewel, and probably some more.

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