In recent years, the market appeared a large number of golden , The yellow decorated with gold watches, because of its variety, pattern pretty , so popular consumers love , but it also brings to the consumer identification difficult . The following watch decorated with gold on the common characteristics of an introduction to identification .
It should be noted that not all kinds of decorative gold watch made of pure gold , generally using gold, silver , copper, zinc alloys , or mechanical , electrolytic and other methods will be covered in case the outer layer of gold alloy . Because pure gold texture soft , low hardness , wear resistance , suitable for making watch cases . The hardness of gold alloys is much greater than gold , so use it to create case or plating case is very strong, and reduce costs.
1 . K gold shell form . "K" is the German "Karat" the first letter , is used to indicate a unit of gold purity . The larger K , the higher gold content . Pure gold is 24K, common K gold shell watch has 9K, 10K, 12K, 14K and 18K , etc. 5 . K gold shell watch import gold logo , generally brush the inside back cover in the watch ; also useful for a woman head (for 18K), birds ( that 14K), trees (for 10K) as a sign .
2 . Gold-plated watch . It is the box in the copper shell surface , a layer of chemically plating gold alloy , its thickness in microns ( symbol μ) as an even amount of units 1 micron equals 1 / 1000 mm . International Organization for Standardization on the gold standard written form requirement is : The letter "C" , said K number ; "P" that thickness . Such as "C18P20" shall be the purity of 18K, a thickness of 20μ gold-plated watch .
3 . Gold watch . The case for the copper , a layer of gold alloy outsourcing by mechanical rolling as a whole . In addition , there is a steel backpack gold watch , these are stainless steel back of the watch , only to be gold shell box . Gold standard thickness of sheet only , not standard purity . International Organization for Standardization 's standard on the gold requirement is to write letters "L" that thickness . Such as the "L40" shall foil thickness 40μ, the general thickness of 20μ, 40μ, 60μ, 80μ , etc. 4 .
4 . Golden Circle watch . Generally steel watch , only on the outside shell of glass along the watch set with a circle K Gympie , it can be separated with the case . K gold purity with 7K, 9K, 10K, 14K , etc. , thickness of less than 0.5 mm .
5 . Gold ring ear shell form . It is a separate piece made of gold K , permanently bonded cover set foot in the watches of the four side , the other the same watch with the gold ring . International Organization for Standardization standard laced with gold writing on the provisions : the letter "C" that the thickness is generally not standard purity . As "C250" shall be applied gold thickness of 250 microns . At present, the gild thickness of 200 micron, 250 micron , 300 micron , etc. 3 .
The current market also often the emergence of a yellow -plated sheet, it is generally non- gold components , golden case of Pan , said it is the titanium plating .
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