Hesalite vs Sapphire Speedmaster Pro (Pics) | Omega Forums
Hesalite or Sapphire?! 5 Fun Facts of the Omega Speedmaster Moonwatch ... | TikTok
Why do many OMEGA Speedmaster fans prefer the delicate hesalite crystal over the much more scratch-resistant sapphire crystal? I like my Speedmaster Speedy Tuesday, but the thought of the fragile hesalite has