Product Features: Multi-color selection Waterproof 100 meters NOTE!!! Waterproof rubber rings are prone to aging and deterioration, and should be replaced regularly. Damage to the watch glass can affect the waterproof performance of the watch, and it should be replaced in time if it breaks. Do not operate the handle of the watch in the water or when the watch is wet to prevent water from entering the watch. Do not leave the watch in a high temperature (60 ° C) and low temperature (-10 ° C) environment for a long time.