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after receiving the watch, you should rotate it anticlockwise, and then rotate it clockwise for 30 cycles to reserve energy for normal operation,relaxed and comfortable to wear adjust the calendar: please do not actively adjust the calendar between 22.00~2.00, this may cause damage to the movement anti-magnetic: please do a little bit about places with strong magnetic properties (such as microwave ovens, refrigerators and other household appliances).a small part of the watch is magnetized our watches are divided into different grades, including high-end ones and ordinary ones. if you need a higher-end one, please contact us.syi