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Since someone else resurrected this... I might as well ask
"More important, all watches should be kept wound and running for their own mechanical health to ensure proper lubrication and cut down on wear. If a watch sits still for a long period of time, the lubricant tends to clump. When that happens, it can have an adverse effect on the timekeeping accuracy of a watch with poor amplitude of the balance wheel. The reason that some, even the finest brand, timepieces do not perform up to par is probably due to the effect on a watch sitting in a jewelry store for long periods of time in a non-running condition."
Does this mean we should get any watch that might have been sitting for a bit serviced by an AD? Or is this a normal part of a purchase?
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