Differentiate between mechanical, quartz and atomic watch in 2 points.
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C and I have a shorter life span from 20-40 years ago and we have to approve Fund for the next month or three and then we can the
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Over time automatic watches require mainspring replacement and repair for mechanical wear and tear. Quartz watches only require a change of battery after every few years. Automatic watches are less accurate as compared to quartz watches because changes in the environment affect the watches' movement.
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