44 mm stainless steel gold. My S2 is black SS with black milanese band. I am just going to transfer the band to the new watch, as it is still in perfect shape. I haven't seen a black band/gold case combo anywhere, so far. I thought it would be more common. I alway liked the black leather/gold watch combo on regular watches, so hopefully this will look as good.
I have been very pleased with how well my black SS S2 case has held up. My prior S0 SS case showed a lot of fine scratches, so I am hoping the gold is better protected. But, nothing ventured, nothing gained.