yellow layer consists of copper,zinc,aluminum alloy consisting of a layer of metal film,if maintenance bad very easy fade loses luster. In wearing yellow watches before before silver wishbone necklace before plating should be wiped clean,and watchcase evenly coated colourless nail polish,dry hind can keep plating yellow watch colour and lustre,were not wear,and still can
its appearance brightness,at the same time in the hot summer still can prevent sweat and moisture intrusion form.Gold jewellery watch is not very fragile,but not not vintage rhinestone jewelry not careful maintenance,you will lose its initial burnish and charm. Generally speaking,just be ware!Because of the rapid development of sports watches and waterproof (water resistance)
become so common that we tend to think this for granted.