My Dad buys Chinese semi-knockoff G-Shocks (He didn't even know what brand they were copying, just liked that they were dirt cheap) of which he has given me several. When people used to complement me on my G-Shock, my standard line was " no, it's an 'S-Shock'. It's eleven letters better!" I wish my current solar powered one had the 'S-Shock' branding. I guess the S stands for Skmei.
They are the Rohm of watches.