Things You May Not Know About Rolex

　　RolexIt can be considered a marvel in the watchmaking industry; despite its high production volume and subtle design iterations, it consistently retains value and achieves high sales. One should note that,Rolexis one of the rare independently operated groups in horology, encompassing only two brands: Rolex and Tudor. Rolex is a household name in China, so today let us discuss some facts you might not know aboutRolexTen remarkable watchmaking facts.

　　RolexHaving their own scientific laboratories

　　The fusion of watchmaking and technology is no longer surprising, and it is not unexpected that Rolex maintains an internal research and development department, as many watch brands do. However, to call these facts truly remarkable implies something far beyond the ordinary. Rolex does not possess just one, but operates several specialized scientific laboratories equipped with state-of-the-art instruments across its various facilities. These laboratories do not merely research new timepieces and complications; they also innovate efficient, high-precision machining technologies and manufacturing workflows. In essence, Rolex is an extraordinarily capable and well-organised manufacturing company that happens to craft timepieces. The Rolex laboratories are extensive and specialized; for instance, their chemistry lab employs highly trained scientists dedicated to researching oils and lubricants, which are essential in precision mechanical manufacturing.

　　In addition to focusing on fundamental manufacturing processes,Rolexit places great importance on daily testing. Rolex operates a laboratory equipped with multiple electron microscopes and gas chromatographs to inspect metals and other materials, evaluating the effects of machining and manufacturing. A key application of these findings is rigorous routine inspection, which prevents production deviations and proactively resolves potential issues. Naturally, scientific laboratories at Rolex also develop the timepieces themselves. For example, one lab conducts stress testing where movements, bracelets, and cases are placed on specialized machines to simulate real-world wear and severe usage conditions. There is truth to the saying that a Rolex lasts a lifetime; they are exceptionally durable.

　　Rolexsteel watch, stainless steel is also a precious metal

　　Although stainless steel has now become one of the most common and unremarkable materials in watchmaking, it still remains a premium material. Stainless steel was discovered in the mid-19 century by the Krupp company in Essen, Germany, and subsequently came into widespread public use in the 20s of the 50 century. As Rolex enthusiasts are well aware, the steel used by Rolex differs from the stainless steel used universally. The vast majority of steel watches use 316L steel, whereas Rolex uses 904L steel. Wherein lies the excellence of Rolex's steel?

　　RolexThe 904L stainless steel utilised is an ultra-corrosion-resistant stainless steel alloy. Currently, it is only applied in high-tech fields such as aerospace, chemical, and petrochemical industries, as well as in surgical implants. Its exceptional corrosion resistance rivals that of many precious metal materials due to its chromium content of up to 21%. After high polishing, its lustre is even more enduring. In fact, Rolex initially also used 316L steel, until 1988, when the first batch of Sea-Dweller watches (commonly known as the Deepsea) utilising 904L steel was released. Later on, Rolex fully mastered the processing methods for this steel, and from around 2003 onwards, Rolex adopted 904L steel exclusively. At this point, someone is bound to ask: since 904L steel is so superior, why does only Rolex use it?

　　Apart from being more expensive, the main reason is that this steel is exceptionally difficult to machine. The manufacturing process of 904L stainless steel demands rigorous precision. During the initial casting, the metal is remelted in a vacuum container to eliminate impurities in the mould that could impair corrosion resistance and cause issues during polishing. The quality of the cast is then verified by scanning under an electron microscope. Ultimately, only meticulously selected castings are used in watch manufacturing. To machine 904L steel, Rolex replaced almost all of its former metalworking equipment and tools. They were able to do this because Rolex produces in sufficient volume and manufactures all components in-house, whereas most other brands source parts from external suppliers. Consequently, although 904L steel performs far better than 316L steel, its higher cost, requirement for specialised machinery, and challenging machining process mean no other brand utilizes this steel.