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Gold (Au).

Precious metal. Ornaments.
The quality of gold is expressed in 24 fractions. Pure gold is expressed as 24 gold, 24 carats and K24. (The content of the main component of the alloy is called purity or quality.)
The gold alloy shows various color tones depending on compounding. These are generically called colored gold. The colored gold often used as the material of the case of the watch includes yellow gold, pink gold, white gold and the like.


貴金属。装飾品。
金の品位は、24分率で表される。純金は24金、24カラット、K24と表す。(合金の主成分の含有率を純度、あるいは品位と言う。)
金合金は、配合によって様々な色調を示す。これらを総称してカラーゴールドと呼ぶ。 時計のケースの素材としてよく使われるカラーゴールドには、イエローゴールド・ピンクゴールド・ホワイトゴールドなどがある。

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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。