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近年来，市场上出现了大量的金灿灿、黄澄澄的饰金手表，由于其品种多，花样俏，因而颇受广大消费者的喜爱，但它同时也给消费者的识别带来了困难。下面就常见的饰金表特征作一介绍，以便识别真假。
　　应注意的是，各种饰金表都不是纯金制作的，一般都是采用金、银、铜、锌合金制成，或采用机械、电解等方法，将金合金覆盖于表壳外层。因为纯金质地软、硬度低，不耐磨，不适宜用来作表壳。金合金的硬度比纯金大得多，故用它来制作表壳或镀覆表壳非常坚固，且降低成本。
　　1．k金壳表。“k”是德“karat”的第一个字母，是用来表示黄金纯度的单位。k数越大，含金量越高。纯金为24k，常见k金壳表有9k、10k、12k、14k和18k等5种。进口k金壳表的含金标志，一般刷在表后盖的里面；也有用女人头（表示18k）、鸟类（表示14k）、树木（表示10k）作为标志的。世界钟表网
　　2．镀金表。它是在铜质壳框的表面，用化学方法镀覆一层金合金，其厚度以微米（符号μ）作为什量单位1微米等于1/1000毫米。国际标准化组织对镀金表的标写规定是：以英文字母“c”表示k数；“p”表示厚度。如“c18p20”即为纯度为18k，厚度为20μ的镀金表。
　　3．包金表。其表壳为铜质，外包一层金合金，经机械滚轧成为整体。此外，还有一种钢背包金表，这类表的后盖是不锈钢的，仅对框壳予以包金。包金表只标厚度，不标纯度。国际标准化组织对包金的标写规定是以英文字母“l”表示厚度。如“l40”即为金箔厚40μ，一般厚度有20μ、40μ、60μ、80μ等4种。
　　4．金圈表。一般为全钢手表，仅在上壳沿表玻璃外侧镶有一圈k金皮，它可与表壳分离。k金纯度有7k、9k、10k、14k等，厚度一般不足0．5毫米。
　　5．金圈耳壳表。它是将单独制成的k金片，永久性地盖套粘结在手表的4只脚上端，其它与金圈表相同。国际标准化组织对贴金的标写规定是：以字母“c”表示厚度，一般不标纯度。如“c250”即为贴金厚度250微米。目前，贴金厚度有200微米、250微米、300微米等3种。当前市场上还常出现一种镀黄表，它是一般不含黄金成分的金黄色表壳的泛称，它镀的是钛
in recent years, the market has appeared a large number of golden, yellow gold watches, because of its many varieties, fancy, and thus quite popular with the vast number of consumers, but it also makes it difficult for consumers to identify. the following is an introduction to the common characteristics of the gold table in order to identify the true and false.
it should be noted that all kinds of gold watches are not made of pure gold, generally made of gold, silver, copper, zinc alloy, or the use of machinery, electrolysis and other methods, the gold alloy covered in the outer layer of the case. because pure gold texture soft, low hardness, not wear-resistant, not suitable for use as a case. the hardness of the gold alloy is much larger than that of pure gold, so it is used to make a case or coated case is very strong and reduces costs.
1. k gold shell table. k is the first letter of the german karat, which is used to denote the purity of gold units. the larger the k number, the higher the gold content. pure gold is 24k, common k gold shell table has 9 k, 10k, 12k, 14k and 18k and other 5 kinds. the gold bearing mark of the imported k gold shell table is generally brushed inside the back cover of the table; it is also useful for women's heads (representing 18k), birds (for 14k), trees (for 10k) as a sign. world watch network
2. gold-plated watches. it is on the surface of the copper shell frame, chemically coated with a layer of gold alloy, its thickness in microns (symbol μ) as a unit of 1 microns equals 1/1000 mm. the international organization for standardization (iso) standard for the marking of gilded watches is: the letter c indicates the k number; p indicates the thickness. for example, c18p20 is a gold-plated table with a purity of 18k and a thickness of 20μ.
3. baojin table. its case is copper, outsourcing a layer of gold alloy, by mechanical rolling into a whole. in addition, there is a steel backpack gold meter, the back cover of such a table is stainless steel, only the box shell to baojin. baojin table only marked thickness, not standard purity. the international organization for standardization (iso) rules for the marking of baojin are expressed in the english alphabet l for thickness. such as l40 is the gold foil thick 40 μ, the general thickness of 20μ, 40μ, 60μ, 80μ and other 4 kinds.
4. gold circle table. generally all steel watches, only in the upper shell along the outer side of the table glass with a circle of k gold skin, it can be separated from the case. k gold purity has 7 k, 9k, 10k, 14k and so on, the thickness is generally less than 0. 5 mm.
5. gold ring ear shell table. it is a separate k gold sheet, permanently covered to the top of the watch's 4 feet, the other is the same as the gold ring table. international organization for standardization on the marking of gold provisions are: the letter c to indicate the thickness, generally do not mark the purity. for example, c250 is a gold thickness of 250 microns. at present, the thickness of gold is 200 microns, 250 microns, 300 microns and other 3 kinds. the current market also often appears a kind of plating huang, it is generally free of gold components of the golden case of the commonly known as, it is plated with titanium
劳力士机械男表
维修中心地址:上海市静安区南京西路梅龙镇广场12楼 品牌简介 劳力士（rolex）是瑞士的手表制造商，前身为wilsdorf and davis（w&d）公司，由德国人汉斯·威斯多夫（hans wilsdof）与英国人戴维斯（alfred davis）于1905年在伦敦合伙经营。1908 年由汉斯·威斯多夫在瑞士的拉夏德芬（la chaux-de-fonds）注册更名为rolex。劳力士以庄重、实用、不显浮华的风格广受成功人士喜爱，其表款高度精准且具备超高的耐用度，在钟表圈中，劳 力士的爱好者们常常会用一句话来形容劳力士：一“劳”永逸。
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