Also Existing around the dial and palms is Rolex’s Chromalight lume. This more recent in-property materials was initially released in 2008 as Rolex’s proprietary luminescent compound and considering the fact that its introduction, it's totally changed Tremendous-LumiNova throughout the brand name’s lineup. Christie’s This was mainly a ref. 6538 — https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/