Some people are also affected by the nature of their work, because mens watches are afraid of falling and water, so for some jobs, wearing a watch will hinder the work, and you do n’t know much about the watch, so you will feel that the watch is like an ordinary accessory. Dispensable. Unless the mechanical watch is marked with waterproof function, it is necessary to avoid water in the case, because water will cause mechanical corrosion and have a strong destructive power. The sea water is even untouchable. Even if the waterproof watch is indicated, the waterproof ring of the watch has been worn out for a long time, plus various inevitable external factors such as sweat and dust, it must be replaced with a new waterproof ring, otherwise it may not have the waterproof function.