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Luxury automatic watches worn by rich people-imported Japanese mechanical movement (no battery required) [Principle of automatic mechanical watch]: The working principle of automatic mechanical watch is to rely on the swing of the arm to generate energy to make the watch work normally, so it is worn for 8-10 hours a day to ensure accurate timing. If you find that the time is not good, please turn the handle 30-40 laps when the handle is closed, and check the time to work normally. It is recommended to directly rotate 30-40 laps when using it for the first time.