Omega Speedmaster Professional 311.32.42.30.04.001 Moonwatch "Alska Project" White Dial Limited Ed. of 50It will involve the melting on the raw compound using oxyhydrogen flame plus the crystallisation in the melted droplets to form a cylinder. Graded nine to the Mohs-hardness scale (graded 1-10), the ensuing sapphire crystals are practically scrat