At present, stainless steel (316 and not 904,which is with nicer properties than 316)is the most widely used in the watch industry. No matter what style of watch or world brand watch, stainless steel watch can meet the requirements of designers. And because of its high cost performance, processing is easier than other materials. Furthermore, the appearance treatment can be diversified, for example, polishing, brushing, and sandblasting. These 3 finishes are the most common. For watch professionals, there are also many types of sandblasting to choose from, such as thickness, color, etc. For some perfectionists, surface hardening is a must.