the gold-plated layer on a gold-plated watch is mostly 14K Gold, which contains 58.5% pure gold and a certain amount of silver. After silver reacts with some volatile industrial waste gas in the air, a layer of black silver sulfide film will be produced on the surface, which makes the gold-plated watch lose its golden luster. Therefore, wear gold-plated watch to avoid contact with chemicals and exhaust gas, such as gas, liquefied gas and sulfur soap, and often keep the gold-plated watch dry and clean. It’s best to wipe it with a flannelette once a week.
in addition, chloride in sweat has great corrosivity to gold-plated watch. When the gold-plated watch is stained with sweat, it should be wiped clean in time to avoid sweat erosion and make the watch lose its original luster.
the yellow plating layer of the Yellow plated watch is a metal film composed of copper, zinc and aluminum alloy. If it is not well maintained, it is easy to fade and lose luster. Before wearing a yellow plated watch, wipe the watch case with a clean soft cloth and evenly apply a layer of colorless nail polish. After drying, wear it again, then apply it 1 times every 1~2 months. After such treatment, it can not only keep the color of the Yellow plated watch and not be worn, but also increase the brightness of the watch. At the same time, it can prevent sweat and moisture from invading the watch in hot summer.