Watches Review Center Report: In recent years, the market appeared a large number of golden, yellow's decorated with gold watches, because of its variety, pretty patterns, and thus popular favorite of consumers, but it also brings to the consumer's identification difficult. The following watch on the common characteristics of gold ornaments as an introduction to identification.
It should be noted, all decorated with a gold watch is not made of pure gold, and generally are based on gold, silver, copper, zinc alloy, or by mechanical, electrolysis and other methods, will be covered in case the outer layer of gold alloy. Because pure gold soft texture, low hardness, wear resistance, suiwatch to be case. The hardness of gold alloys is much greater than gold, so use it to create case or plated case is very strong, and reduce costs.
1. K gold shell form. "K" is the German "Karat" the first letter, is used to denote gold purity units. Greater the number of K, the higher the gold content. Pure gold is 24K, common K gold shell watch has 9K, 10K, 12K, 14K and 18K, etc. K gold shell watch import gold logo, generally in the form brush the inside back cover; also useful for a woman head (for 18K), birds (that 14K), trees (for 10K) as a sign.
2. Gold-plated watch. It is the surface of the copper shell box, with a chemical layer of gold alloy plating, the thickness of the micro (symbol μ) as the unit of 1 micron even amount equal to 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" is the purity of 18K, a thickness of 20μ gold-plated watch.
3. Covered with gold sheet. The case of copper, a layer of gold alloy outsourcing, mechanically rolled into 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 written on gold-standard provision is based on letters "L" said thickness. Such as the "L40" is the foil thickness of 40μ, the general thickness of 20μ, 40μ, 60μ, 80μ, etc. 4.
4. Golden Circle watch. Generally steel watch, only on the outer 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. Golden Circle ear shell form. It is made of the separate K gold piece, permanently bonded COVERS watch four feet in the end, the other the same watch with the gold ring. International Organization for Standardization's standard of written provisions of the paste is: with the letter "C" that the thickness is generally not standard purity. Such as "C250" is the thickness of the paste 250 microns. Currently, the paste thickness of 200 micron, 250 micron, 300 micron of 3.
The current market also often the emergence of a yellow-plated sheet, it is generally non-gold components pan gold case said it is plated titanium.
Ariticle Source: http://www.watchreviewcenter.com
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