A metal developed by Rolex is known Rolesium, 904L stainless steel alloys and combinations 950 platinum material. Rolesium is 40 mm in diameter using Oyster case
Rolex has also developed CERACHROM, it has been used in the 50th anniversary of the Rolex Submariner and Rolex Cosmograph Daytona, which was launched in 2013 Baselworld CERACHROM baffle is an extra hard, corrosion-resistant ceramics; CERACHROM bezel digital and scales coated with thin platinum already carved through the PVD (physical vapor deposition) process.
50th anniversary of the Rolex Cosmograph Daytona sports also have bluish Parachrom, another Rolex exclusive material, is extraordinary resistance to magnetic field gossamer. Parachrom, niobium, alloys of zirconium and oxygen gossamer constituted made by a temperature change is said to maintain a stable and much less susceptible to impact, and the remaining, according to Rolex, under the impact of the case 10 times more accurate than conventional hairspring.