Casio Men's G-Shock Gulfman Tide and Moon Watch #G9100-1

PROS:
1) comfortable watch to wear: as other reviewers point out, it feels well balanced despite it's physical size.

2) Fits well, even for smaller wrist sizes: the material, shape of the band and its width all work to make this a comfortable watch.

3) Titanium backing (lightweight and resists corrosion).

4) The tide and moon functions seem to be fairly accurate and are fun/useful to have readily available.

5) Really, it's not that bulky when compared to many other watches. For example it's comparable to a self winding analog watch.

CONS:
1) It's bulk is felt if you wear it with tight fitting sleaves (such as knitted wrists on a jacket).

2) The booklet that comes with it is a little tedius to use (small pages and print), which may be why some people found it difficult to set up. However, you can easily find a .pdf file on the Internet that is full size and easier to read.

In general, the Moon Phase and Tide functions require you to invest a little more time in learning to use the watch - but that ought to be expected. In the end, you may even enjoy learning some of the science behind it.Buy Casio Men's G-Shock Gulfman Tide and Moon Watch #G9100-1!