一般防水手表并非潜水手表，它虽然采取了密封措施，能防止汗水和有害气体的侵入，但并非绝对不进水。同时手表在使用过程中会出现一些不可避免的现象：每天上条拨针，柄头或柄头管内的橡皮圈会逐渐磨损；表玻璃受温度影响而热胀冷缩，会使它与表壳上框配合处出现空隙；后盖的 General waterproof watch is not a diving watch, although it has taken sealing measures to prevent the intrusion of sweat and harmful gases, but not absolutely not into the water. At the same time the watch in the course of the use of some unavoidable phenomenon: every day dial needles, handle or crown tube rubber band will gradually wear; table glass by the temperature and thermal expansion and contraction, it will make it with the case On the box with the gap at the back;