The ceramic bezel is fairly technically challenging, as the ceramic material changes physical dimensions when fired, and the claws need to fit seamlessly into their recesses. Once the bezel's fired, depressions for the Roman numerals are laser-cut into it, and then they're filled with Omega's Ceragold. The entire bezel is then brushed, and since the ceramic is harder than the gold, the numerals pick up
link a brushed matte finish while the ceramic remains untouched.