It is made for Rolex Submariner which has sappahire crystal for 16800, 16808, 16810, 16800-81,16610 and others. BEZEL INSERT ALUMINUM FOR ROLEX SUBMARINER 16808 16618 16818 GREEN TOP QUALITY. NEW BEZEL INSERT CERAMIC FOR ROLEX SUBMARINER 16808 16618 SAPPHIRE BLACK GOLD/F.