1. When wearing this watch for the first time, you need to wind it up to give it full power 2. How to wind up: Keep the crown in its normal position, rotate it clockwise 30-40 times, and wear it for at least 8 hours every day 3. Suitable for daily use, can be worn when washing hands or getting wet. Splash proof and rainproof. Not suitable for swimming, snorkeling, and water related work. 4.If the length of the strap does not fit your wrist size, we have included an adjustment tool as a gift. You can use it to adjust the strap length.
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