stainless steel watch classification

- Apr 11, 2018-

Table classification

Full steel watch case and rear cover are stainless steel.

The case of the semi - steel watch is brass with chrome finish. The back cover is stainless steel.

In the 1980s, the "hard alloy" case was called "never wear" case. Hard alloy is a tool alloy for machining, which has extremely high hardness and is extremely resistant to wear.