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Plating.

It was said that "Mekkin (it was ruined)" in old days. It is a word born from a phenomenon that it becomes an amalgam and melts and disappears when gold is put into mercury.
Plating is a type of surface treatment. It is to coat the surface of the material with a metal thin film.
In order to prevent corrosion of a base material which is easily oxidized, plating is applied with a metal which is hard to oxidize.
Also, plating may be applied to base metals and plastics with gold, chromium in order to give luxury and texture.


古くは滅金といい、水銀に金を入れるとアマルガムとなって溶けて消滅する現象から生まれた言葉である。
メッキは表面処理の一種。材料の表面に金属の薄膜を被覆することである。
酸化しやすい母材の腐食を防ぐために、酸化しにくい金属でメッキを施したりする。
また、高級感や質感を出すために、卑金属やプラスチックに金やクロムなどでめっきすることもある。

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Water resistant.

Even waterproof watches should not be excessively exposed to the threat of water. If you operate the watch crown or button with moisture adhering, water enters inside the watch. If you take a bath while wearing a watch, ingredients such as steam, soap, hot springs will discolor and corrode the metal, and the packing will be deteriorated. If you wash your hands directly from the faucet, watering the watch causes waterproof failure because tap water has high water pressure. The watch is sometimes cloudy due to the temperature difference between the outside air and the inside of the watch. It will not be a problem if it is temporary. 防水時計であっても、過度に水の脅威に晒すことはさけなければならない。 水分が付着したまま、リューズやボタンを操作する。(時計内部に水が入る。)時計を着用したまま入浴する。(蒸気・石鹸・温泉の成分などが金属を変色・腐食させたり、パッキンの劣化を早める。)手を洗う際に直接蛇口から水をかける。(水道水は水圧が高いため、防水不良を引き起こす。) 外気と時計内部の温度差によりくもりが生じることがあるが、一時的なものであれば問題ない。