pagani design men gmt automatic watches-fashion stainless steel mechanical watch-sapphire glass lens watch men(blue red) by benyar <br><b>product features: <b> <br>unidirectional rotating bezel <br>multi-color selection <br>waterproof 100 meters <br><b>warm tips: <b> <br>please keep the watch away from magnets which may damage the movement package <br> <b>instructions for use <b> <br>1: rotate the upper clockwork <br>2: pull out the button, turn it down to adjust the time <br> <br><b>attention!!! <b> <br>do not set the time and date in wrong direction <br>if your watch is completely stopped, it is recommended that you manually wind the mainspring by turning the crown. kindly remind:manually winding the mainspring by turning the crown between 20-25 turns in 5-7 hours,the watch will get enough power. <br> <br><b>note!!! <b> <br>waterproof rubber rings are prone to aging and deterioration, and should be replaced regularly.<br> damage to the watch glass can affect the waterproof performance of the watch, and it should be replaced in time if it breaks. <br>do not operate the handle of the watch in the water or when the watch is wet to prevent water from entering the watch. <br>do not leave the watch in a high temperature (60 ° c) and low temperature (-10 ° c) environment for a long time.