48+ Omega Speedmaster Professional Sapphire Or Hesalite US. Omega speedmaster professional hesalite review. To protect the delicate innards from harm.
We have covered this topic many times before, but the as plexiglass, or hesalite, is a very soft material, the crystal tends to get scratches quite easily. 32 results for omega speedmaster professional sapphire. While the newer, harder sapphire crystals were already available.
Excerpt from moonwatch only (aka the speedmaster bible, see pictures):
The previous generation models measured 14.3mm and 13.7mm. I have the first big step in deciding on the speedmaster. Omega speedmaster moonwatch | hesalite vs sapphire. Omega speedmaster professional moonwatch sapphire/hesalite sandwich 3572.50 /w beautiful tritium patina.