How many kinds of precious metal watches do you know?
0 1 gold watch
The most common type. The case is made of 75% pure gold, 12.5% silver and 12.5% copper. The color of silver and copper together is very similar to that of gold, so the alloy cast by pure gold still maintains the true color of gold, but the hardness has increased a lot, which is enough to cope with the tension of the strap.
02 red gold watch
The red gold watch is also called the rose gold watch. The case is made of 75% pure gold and 25% copper. Due to the increase of copper proportion, the alloy is slightly red in color, which has the characteristics of strong ductility, high hardness and difficult deformation or scratch. If silver is added, the red color will become lighter. When the silver content increases to 10% and the copper content decreases to 15%, the color will become lighter and pink. On the contrary, the deeper, the redder.
03 platinum watch
The concepts of platinum and platinum have long been confused. Platinum in watchmaking industry is still an alloy of gold. Among them, the proportion of pure gold is still 75%, and the other 25% metal will come from zinc or giant gold.
1) If zinc is added, the color of platinum will be grayish yellow, and it will only shine when the outer layer is plated with money. The disadvantage is that the aesthetics will be reduced after the coating falls off.
2) If this precious metal is added, the cost will be high, and the added platinum will be smooth and white, and there is no need to plate money, thus avoiding the trouble of future maintenance.
Platinum watch
Platinum watches are the pinnacle of clock materials. Platinum is very expensive. Only the most precious watches in the world use platinum case, which is more expensive. In Switzerland, platinum is completely different from the official purity mark 18K. For the convenience of buyers, Patek Philippe has set a diamond under the six-point scale of all its platinum watches, which is very obvious.