This is a high dome acrylic crystal that is sized to fit Tag Heuer and Heuer 1000 38mm models. It is manufactuered by GS Crystals in Germany is commonly known as the best in the business. 


This crystal features a metal ring on the inner diameter of the crystal that ensures a water proof seal with the case of the watch. 

GS Diver-Tite High Dome Acrylic Crystal