Also Existing over the dial and fingers is Rolex’s Chromalight lume. This more recent in-property content was very first introduced in 2008 as Rolex’s proprietary luminescent compound and considering the fact that its introduction, it's entirely changed Super-LumiNova within the manufacturer’s lineup. Rolex makes more than 1M watches a year, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/