An essential guardian of the watch’s chronometric precision, the Parachrom hairspring is entirely designed and manufactured by Rolex. Its edge is thinner than a single strand of hair, its weight a fraction of a pearl’s. Why blue? Because this hue is true to the tradition of watchmaking excellence. It is the exact colour taken by our unique alloy of niobium, zirconium and oxygen when it has been anodized to stop the process of oxidation. This blue is essential to us, because it symbolizes the long-lasting performances we hold ourselves to. This hairspring is unaffected by temperature variations and offers resistance to strong magnetic fields and shocks. Each Rolex watch equipped with the Parachrom hairspring will tick at a most regular and perpetual beat. Discover more https://on.rolex.org/3GnGEzM
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