Cyclops Magnification: Rolex watches commonly function a small magnifying lens, called the Cyclops, around the day window. Authentic Rolex timepieces will likely have a 2.5x magnification, creating a day easily readable. Counterfeit watches normally Use a lower magnification or imperfect alignment. 6200 and ref. 6205. There is certainly some dispute https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/