We may know that the steel models of ordinary Swiss watches are made of 316L steel, and Rolex is an exception. All of Rolex steel watches are made of 904L steel with higher toughness (316L and 904L are both US serial numbers). Some Steel Rolex models are even difficult for book.

What's so good about 904L steel?

Features: 316L steel is not easy to cause allergies, but also not easy to corrode and deform, so it is mainly used in food processing and medical equipment. 904L steel is mainly used in equipment such as chemical reactors, seawater processors and other equipment exposed to highly corrosive substances. Its resistance to corrosion is therefore superior to that of 316L.

Content: 904L steel and 316L steel both belong to stainless steel. The biggest difference between them is the metallic chromium content of the material. 904L steel contains more chromium, which can help forming a protective anti-corrosion film on the surface of metallic materials. If you are prone to metal allergies, you can avoid 904L steel, which contains more chromium. Rolex began producing watches in 904L steel as early as 1985, and gradually replaced the old steeel as the brand's standard.

Polishing: The most common problem on a watch case is wear or corrosion. If the watch-wearer himself is often engaged in marine activities or diving and has higher requirements for corrosion resistance, Rolex super clone 904L steel watch is a better choice; and due to the high metal purity of 904L steel, it can be highly polished, and then a brighter and more beautiful effect can be achieved.

It is said that a steel Rolex can be polished 26 times in a lifetime. Even with severe dents, it can be polished five times to a depth of 0.02mm. The secret behind this is, that Rolex has higher demands on the purity of the steel used, leaving only the "purest" part in the middle.