Omega Speedmaster Professional 311.32.42.30.04.001 Moonwatch "Alska Project" White Dial Limited Ed. of 50It entails the melting of your Uncooked substance applying oxyhydrogen flame plus the crystallisation in the melted droplets to form a cylinder. Graded nine around the Mohs-hardness scale (graded one-ten), the resulting sapphire crystals are pre