I've owned a number of Casio watches over the years going back to their original Databank watches.

This is the first time Casio has disappointed me.

The actual working watch face in the center is minute, maybe an inch across, the rest of the watch is wasted space.  Instead of the bright high-contrast, easy to read face you see in the illustration here, it was dull, dingy, dark and hard to read even in reasonably bright light.

The LED light is a joke.  A dim little glow over in one corner that does a very bad job of illuminating the watch in the dark.  vastly inferior to Casio's own EL back-lighting display used on many of their watches (including the $12 one I bought to use since this one stinks.)

To be fair, the solar power part is neat.  The watch turns the face off when it is dark to save power.  Unfortunately, this means you often cannot read the watch at all unless you go someplace brighter or hit the (ineffective) light.

Make the actual display fill that wasted ring around it and add the EL back-light and you'd have a winner.

I just boxed this right back up and am returning it to Amazon since it does not match the description and indeed, i find it unusable.