1Sapphire Crystal: The watch glass screen is made of sapphire crystal, which is not easy to break and is strong 2Transparent and Glossy: The round watch glass has good transparency, glossy appearance, which is resistant to high temperature and scratches 3Rounded Edge: The watch glass screen protector has rounded and glossy edges for a comfortable feel and no scratches 4Waterproof Rings: The sapphire watch glass screen has a waterproof rings design, which can effectively prevent water droplets from entering 5Scope of Application: The sapphire watch glass screen is suitable for as for 69173, for 68273, for 16233 series accessories