Review of the Casio G

Right now, it's telling me there is a full moon which I noticed and verifiedon my way home this evening. The phase of the moon is not information I find myselfneeding often, but it uses so little real estate out of the face of the seiko online thatit's actually kind of a fun addition.The tide indicator function of the Casio GW-400J is kind of cool. Since I can'tread the instructions, and I don't have any other watches with tide graphs, I don'tknow exactly how it works, but it seems fairly intuitive. The x-axis representstime over a 24-hour period, and the y-axis represents the height of the tide. Thepoint representing the current tide level blinks to make it easier to spot amongthe other dots. You can set the watch to one of 200 locations worldwide so the graphwill roughly correlate to your geographical region.And if you wereplanning on using the vibrating alarm as a way to wake yourself up in the morning whileallowing your partner to sleep in, you will need to be one incredibly light sleeper.I think the GW-400J generally serves the purpose for which it was intended, however,which is the ability to keep track of time, events, and intervals while participatingin water sports when wind and waves would keep you from hearing a faint high-pitchedbeep. And considering the fact that the GW-400J doesn'thave a lot of power or space to work with, I think it performs admirably, thoughnot was well as the much larger and power hungry vibrating TissotHigh-T.I like the fact that the thermometer can be used for measuring both airand water temperature, although I really wish I could toggle it from Celsiusto Fahrenheit. Admittedly, I can't really blame the nice seiko or Casio for thissince it was never meant for an American audience, however one thing I can blamethe seiko for you for is the fact that you don't seem to be able to reset the thermometerto its factory calibration. I didn't realize this until I had already re-calibratedit into complete uselessness, where, for all I know, it remains to this day. Theonly way to get it to be even remotely accurate again would to manually calibrateit with another thermometer, however since I can't really make sense of Celsius anyway,I never bothered.The GW-400J's moon phase indicator is interesting, and seems to be very accurate.It appears as a small LCD circle at what would be the 3 o'clock position of an analogwatch.