I'm new to the Casio watches in general, but, being a fan of all kinds of timepieces, I recently took the plunge. I first picked out the more utilitarian GW-6900, also a nice piece. I next got this model becuase of it's slightly more compact size and conventional appearance. It's a winner in all aspects. Nice looking, easy to use aas well as comfortable and functional. I'm not big on using all of the G-Shock features, but it does keep perfect time due to the atomic capabilities, and I like the illumination feature. It synchs up with the atomic signal without problem as needed even though I live in an apartment building in NYC, and the solar battery keeps it's charge with minimal exposure to light.