Physiques differ from person to person. Some people tend to have allergies , unfortunately, I am one of such people .Two years ago, I had been wearing a platinum ring.And because it was very tight , I never took it off.Consequently, I found some eczemas and small rashes on my left ring finger in the end. Even though I survived from all the itches and surfering, it set down as roots in my body.As long as eat something apicy, the problem will come round again. 

Stainless steel case contains tweezers metals  which are harmful to humans.If having too many intake of it ,people can get certain diseases. With sweating tweezers element can be dissolved and exuded in our bodies. Nowadays, many countries including China attach great inportance to this issue-developed a seepage amount of industry standards for metal tweezers case and straps. 

If belonging to the allergic-type physique, you’d better wear a watch with titanium alloy case and traps. Titanium has the best affinity to human body. Apart from titanium alloy, there are other choices like ceramic, plastic material. 

To tell you the truth, tungsten steel case and strap also contain a small amount of nickel, making it not very green in emvironmental protection. If you only have a stainless steel watch to wear, take my isolation method. First, get a small piece of cow cloth. Second, cut it into the same shape as the case back. Third, stick it to the back cover with glue. I have been taking this method, other than cow cloth I have try natural agate slices-grind it into a right size, then stick it to the back cover. This idea came from an inspiration. More than 10 years ago, I saw Sigma Swiss watch, which is characterized by its thin sheet .And the thin sheet on the case back is made of all kinds of natural minerals or precious stones.Each watch has a different mineraql textures, it is said that such watch has a variety of wonderful health effects. With regard to How to stick it, the both sides adhesive tape can solve the problem. What is more, it is easy to replace and your watch will stay still on the wrist which means no sliding up and down. So those who show interest in it can have a try. 

Now, the popular glass case back can protect you from nickel-metal. Speaking of penetration watches, case back of sapphire glass is most mommon. In addtion to leather, there are many kinds of non-stainless steel strap such as textiles, rubber,plastics. Hoever, leather strap brings more comfort, especially when weather is cool.

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