Classification of Watch Band

- Jul 20, 2017-

Platinum is a rare and expensive natural pure white metal, is one of the world's rarest jewelry with precious metals, the annual supply of only 5% of gold, with almost twice the strength of gold, 30 times times rarer than gold. Platinum Luster White, natural purity, purity of up to 90% above, nature, often wear will not fade. Pt900 is a platinum jewelry with a purity of 90%, and Pt950 represents a platinum jewelry of 95% purity.