Daily care and precautions for use 1. Do not use your watch (including water-proof watch) in a hot-water bath, sauna, or in an environment with great temperature changes. 2. Do not operate the watch button in the water and adjust the crown . 3. Please regularly clean the strap , case ; case of leather strap is to avoid contact with moisture, moisture, cosmetics, while avoiding exposure. 4. Please pay attention to anti-magnetic watches, to avoid prolonged access to electrical appliances, mobile phones and magnets. 5. Do not dismantle the watch under any circumstances. 6. Avoid the watch from being hit or dropped. 7. Do not adjust the watch date between 22 o'clock and 2 o'clock to avoid damage and inaccurate calendar jump. 8. If there is abnormal watch, immediately sent to the nearest watch shop inspection. 9. Leather watch should avoid contact with water, so as not to harden the watch, smelly, which led to the result of fracture. Especially sweat more friends, it is best not to wear for outdoor sports or summer wear. 10. Automatic mechanical watch must be sufficient activity in the circumstances, that is, must wear more than 10 hours a day before normal operation.