Casio Rock works for me
346122
Like after 4 weeks use: Battery life (few calls,goes about a week between charges).
 Survived getting soaked in bike jersey pocket on wet ride.
 Flash light is fine.  Camera is fine, can text pic free to Verizon and then get it free. No cord for it as of a few weeks ago.  Trigger button to open it is not a lock, just a trigger to open it.  I use it a lot.  Ring is loud enough.  Can use speaker phone, don't much.  Heard 3G doesn't use much battery and that web suggested software changes were less than optimal.  Could send old phone names and numbers to verizon free and then retrieve when I got this phone in the mail.
Looked up a time zone time of day on world map.  Hope to use compass on cloudy motorcycle rides when stopped, but too cold for much of that in January in PA.  Contact list font is large enough.  Message icon is large enough.  Screen is bright enough.  Speed dial for 7 people is good.
1417266
I've been using these inexpensive Casio watches for years.  I like the larger than average digital time numbers for these old eyes.  The bands on these watches fail long before the battery (from daily buckling/unbuckling).  If I never took it off I'm sure the bands would last a heck of a lot longer.  They're pretty durable, too.  I bump into a lot of things in the course of daily activities.  It'll pick up a few scratches on the display and body, but I don't mind. Better this than my Seiko.  It keeps perfect time, it's cheap and unobtrusive.  A great deal for the $15-$20 price range.
1748529
I love this watch!! I have bought quite a few watches over the years and my tastes lean sharply towards functionality rather than fashion or price.
The first atomic watch I had was a Casio and I'll never get another watch without this feature.
At night, I have a Casio solar/atomic watch on the nightstand next to the Skyhawk. Each night the Skyhawk receives a signal and resets itself. The Casio can not get a signal from the nightstand. I have to place it on the window sill, some twenty-five feet away.
My only gripe with this watch and most other ones I tried is that the LCD display is too small for me to see without putting on reading glasses.
The weight is perfect and the overall size seems just right. I am six foot, medium build and had to remove one link in the band to make a good fit.
When I ordered the watch, I ordered a protective cover from Zagg to protect the mineral crystal. I have used Zagg many times and swear by them. They are the easiest to apply and they list the Skyhawk watch on their website, so you don't have to worry about ordering the wrong size.
324673
If you wear a watch as jewelry, if a Rolex or equivalent impresses people you want to impress, fine, spend your money and impress those people.... But, if you just want to know what time it is, this inexpensive watch does the job for me very well. It is accurate, easy to read in daylight or dark. It has functions that I rarely use, but I really like the "dual time zone" feature. I set the "dual time" to whatever time zone I am in, but leave the "primary time" set on my "home time zone" alone. This is simply great for air travel. At a glance, I can see local or home time.
I've had a lot of watches, but this basic Casio works well for me. I got this one to replace an old Casio that I had scratched and beat up over the years working on cars, carpentry, exploring, etc... That old one still works, but this one is even better because the light is better, and numbers are larger and easier to read -- something I've come to appreciate as I get older.
This watch is stainless, very durable, water resistant, keeps great time.
And, the thing I love about it, I don't need to worry about it. I have some nice watches. One, for instance is a very nice gold watch, a special gift for special reasons. OK, fine for a wedding, I guess, but, mostly, they stay in a drawer. This watch is certainly not expensive jewelry. It  just a simple, useful tool for me. If I lose it, or break it, or whatever, I can toss it out and get another one. One less thing to worry about.
It is an excellent product.
807712
I bought a leather case for  casio G zone,here on amazon. I couldn't find it anywhere else. It does the job.
1791566
I was looking for a watch for work that wasn't my good dress watch.  I  chose this one because of price ($20) and Casio as a brand.  The face is bit smaller than I wanted BUT not a deal breaker.  Love Casio, would buy one any day.
3827242
Last year I had bought a highly-rated Casio Pathfinder which was so huge that I didn't feel like wearing it much and when a cousin liked it I presented to him in a second. This watch is a winner in contrast.

Seems like Generation 3 sensors are much smaller and as a result the watch is much smaller and I like wearing it daily and I think it is very light (70 grams or about 2.4 oz) given its functionality.

It's an ABC (Altimeter Barometer Compass) watch and I have not checked the accuracy of them (compass seems fine) given Casio's extensive experience in them but the time keeping seems accurate. The tiny guide has to be read if one wants to adjust the time, calibrate the device. I know it's a pain when the font used in the guide is so tiny.

There are various PRG-270 modes on sale here with some almost identical looking ones selling for vastly different prices. The cheapest ones seem to have negative display which ruled them out for me. Some may like them though. I paid slightly more for this watch hoping that display will be readable and it has not let me down. In the bright sunlight it reminds me of Kindle Paperwhite and reading is easy. I would have preferred an analog version but this one is nice too.

After I purchased this watch last week I saw two lightning deals by Amazon on Casio watches. One of them was 260 series watch - apparently a previous version watch with old sensors and huge size offered for more than I paid for this one. More than half of that was sold to 'lucky' buyers. Just do your research, there are many models of Casio and unless one is careful... The mere fact that you are reading this makes you a prudent buyer though.

Good luck.

[Added on July 23, 2014]

I wear this watch all the time except when taking shower (don't know how hot water will affect it). After two months time is accurate within one minute, perhaps a few second, of atomic time. Not bad! So unless your need is for much more accurate time paying extra for an atomic watch does not make sense unless you need to show off. I haven't calibrated the altimeter but when I checked it quickly at high altitudes of Yosemite park, its readings were higher by about 500 feet or so compared to posted numbers. When I go for some serious hiking will check it thoroughly and will compare with my Garmin eTrex 30's readings too. One negative - I am in Ecuador now and have to adjust my time by a couple of hours but have to read the manual to figure out how to do it. I hope in future I can adjust my watch's settings on a laptop. :)
1363787
i like watches made by casio. this is my 3rd one. the predecesors were broken at the hinge after a few years of service. that's why i gave it 4 stars only hoping that this one will hold longer. the electronics are good, the watch is easy to program although the buttons are small.
i have a small wrist and the watch is a bit too large for me. the strap is flexible.
a week after the watch was synchronized with my computer it is behind by 15 seconds
2334810
Works over night and am ready for a week with my Casio solar watch
2945046
Casio makes some of the worlds greatest watches. The solar powered watches are the best and if they are atomic it makes them even better cause they update them selves and always keep great time.
4204459
So I bought one of these Casio watches around 15 years ago at a Walgreens or similar store.  I can't even remember it was so long ago.  I think  I changed the band once or twice and changed the battery once when the display got dim.  Eventually, I just took to keeping the watch without a band in my pocket.  It just never gave up and was a familiar comfort.  So I was pretty bummed when I realized I had lost it after all those years.  The next best thing to finding my lost watch was realizing that Casio still makes the same piece so here's to another 15 years and one of the best small investments I've ever made.  I'm curious about how many of these little buggers they must have sold so far.  It's a great little watch even if i do have to adjust it twice a year for daylight savings.
176507
This is my third Casio of this model. It is easy to read and change settings. Water resistance is good for around the house , yard and construction areas. The band will not last more than a couple of years but if you like there are replacement bands available.
3448987
Great watch. No problems figuring out the time date and function set up. Good manual but follow it carefully. If you've owned Casio befor you'll have no trouble. In low light the led lighting is ok for telling the time on the hands but not good for much else. The led displays are best viewed with reflected light but that hasn't been a problem for me. The larger case size is great and I have very thin wrists and I can wear it fine. Overall this is a great watch.
177692
I have reviewed more than thirty of digital analog watches before I decided to get this one. This one cached my eyes right away. I like the simplicity of the design. I had had a Casio watch. It worked very well. I think Casio makes good digital watches and their prices are extremely competitive. The price of this watch is less than $9.
467123
Inexpensive, easy to use digital watch.  When I first got it I didn't think I would like the color, but its grown on me and now I end up wearing it over a black Casio watch I have.  Only gripe are the numbers are a bit too small.
1613206
Update April 6th 2013 --  More than any other watch this one has not let me down! I have since bought a few more Casio's - a few G-shocks, a few Solars, a Mudman and a Casio dive watch. This is the one that I keep returning to for my everyday watch. I bang it at least twice a day, get it soaked, and I amazed that the time, the tide, and moon graphs, have not skipped a beat. I call it "Old Faithful". And for middle aged eyes, I can tell the time anywhere, in any light. I still love it! Thanks Casio and thanks Amazon, for selling such great products!

June 11 2012 - I own several Casio's, and this is my favorite. I am old school, so I need the analog hands, but I also need the digital time for my type of work. For my middle aged eyes, I can see the digital time and date, no matter where the analog hands are positioned. I sometimes have to check on equipment at night, and this thing lights up like a divers watch. You just charge it under a light source for a few minutes, and the charge lasts for a long time. I work near the delta, and I find that the tide and moon phases are right on the money. I have banged this watch several times and no scratches, so far. I have also got it soaked several times, and the time is still accurate. This would be the ultimate watch, if Casio would put it in a G-shock format. The crystal is not protected by the bezel, so you have to be a little more careful with it, then with a G-shock. No matter what watch you choose, you won't go wrong with any Casio watches; because I have found them to be waterproof, and they take lots of punishment, and give accurate time.
4145048
After having to return 3 previous Casios due to non-functioning features, I finally got a fully functional watch!!! I plan to use this for international travel. It has just the features I was looking for - atomic adjusting, solar powered, multiple world time settings, and multiple alarms.  Many reviews say it's difficult to read the numerals on the black watch face, but that for me is a plus as it doesn't stand out or attract unwanted attention. The features are easy to setup and change. But this watch is not for those who need extras like compass, altimeter, syncing with a smart phone. It's simply a very good basic G-Shock watch.