Made of Sapphire glass. Trim or Border Color is Silver. There are NO EXCEPTIONS! Easily fits most watch cases with glue or pressure fit.
Sapphire Crystal Rado Double Dome cut edge Silver Trim w/Gold Lines(19.5×18.9)mm
Sapphire Crystal Rado Double Dome Black Trim (23.0×2.8×0.90)mm Fit 318.3829.4
Sapphire Crystal Original Rado Rectangular Silver Trim w/Gold lines(28.3×23.5)mm
Hamilton Khaki Field 38mm | Glass Double Dome Sapphire Crystal CLEAR AR Coating
CT063 - Double Dome Sapphire Crystal - Seiko 5 - 30mm
CT135 - SRPE + SRPG FIELD Double Dome Sapphire Crystal