0.6-1.7mm White Watch Crystal Gasket Waterproof Front Glass Seal Ring 16-40mm
£3.56
Leather Watchband. Stainless Steel Watchband. Silicone Rubber Watchband. Nylon Canvas Watchband. Ceramics Watchband. Milanese Watchband. It is used on watch crystal to make the watch waterproof, NOT watch back case cover!