Omega Speedmaster Professional ref. 3572.50 Tritium Dial Hesalite + Sapphire Sandwich | WatchUSeek Watch Forums
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
![OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine OMEGA Speedmaster Moonwatch – The All-Important Question: Hesalite Or Sapphire Crystal? | Swisswatches Magazine](https://swisswatches-magazine.com/wp-content/uploads/2021/06/Hesalite-vs-Sapphire-OMEGA-Speedmaster-Moonwatch.jpg)