Zirconia ceramics series watch accessories, such as watchband grain, watch bezel, watch dial, watch tightener and watchcase. They have the following features 1Hardness approaches to nature diamond; lighter than metal; never be worn and torn, never change colourlike gem. 2Highly wear and oxidation resistant. Never rust, never change colour, never cause skin allergy. 3Highly insulated; no metal and plating pollution; it is the ideal environmental protection material of clock and watch industry. 4High density color ceramicwatch bezel, watch dial, watch tightener and watchcase with unique quality feeling! 5Super high hardness, attractive and durable, without harm to skin, with unique luster, elegant and outstanding. 6Modern and fashionable design will bring customers with substantial economic benefits