What are the precious metal material watch straps?
Platinum is a rare and expensive natural pure white metal. It is one of the rarest precious metals for jewelry in the world. Its annual supply is only 5% of gold. It has almost twice the strength of gold and is 30 times rarer than gold. . Platinum has a white luster and natural purity, with a purity of over 90%. It is natural and will not fade when worn frequently. Pt900 refers to platinum jewelry with a purity of 90%, and Pt950 refers to platinum jewelry with a purity of 95%.
K gold K gold refers to the alloy of gold and other metals mixed together, because its English is Karat Gold, so it is called K gold for short. For the precious metal part, pure gold is 24K, but pure gold is too soft and not suitable for making watches. It must be mixed with other metals to enhance the hardness. Generally silver, copper and palladium are the main ones, but no matter what kind of metal is mixed, the proportion of pure gold is 75% . With the ratio of gold, silver and copper, five materials with different colors can be produced. N is used to represent the copper content. For example, red gold with the highest copper content is represented by 5N, while white gold is correctly said to be white. K gold.
Half gold
It is made of stainless steel and 18K gold materials to match each other, presenting a unique two-tone beauty.