CasioPRG600 Series | Pro Trek | 100M WR | 1/100 SEC Stop Watch | Compass/Alt/Baro-Thermo | Tough Solar Power/Atomic Timekeeping | 1-100 SEC Stopwatch | Countdown Timer | World Time

When the watch arrived, the time and date were already correct because this is radio controlled. The size of the face is large and easy to read. It has the same functionality as the Casio Mudmaster, $500 less. It also has a thinner profile and doesn't look like a stack of legos like the mudmaster. I am really happy with this watch and the ease of setting it up like I want it. For the money, this is a good value for the money. I wore the Garmin Fenix 7 for several years. I love it, still have it. This Protrek serves a different purpose and is a great escape from getting all the messages I used to receive.

This might be my favorite watch I own and I have several more expensive watches. But I love this one, it’s practical with the timer, alarms, world time (which I have set to London for business reasons), temperature, barometer and stop watch functions . Plus it has a fantastic face. Really great. I bought a fabric band as sometime the rubber bands make me itch, but for some reason this one does not.. highly recommend this watch.Oh and it runs on stored light. Nuff said.

I love this particular Casio's mix of features. I've worn a Riseman for years, but my aging eyes now have trouble reading its feature-filled digital display. The large analog face of this ProTrek solves that problem while adding a compass sensor to the mix. My only issue is that my ears, also aging but still working satisfactorily, can't hear the watch's alarm sound unless I'm holding it to my right ear. I can barely hear it at all even while holding it to my left ear. I sure wish the frequency of the alarm tone was adjustable! Atomic timing would be nice, but accuracy is great so that's moot, really.

I’ve been looking for a more stylish but affordable ABC watch and this is it. It is lightweight, has a strong band, and the way the compass and other features use the analog clock hands is really cool.

Nice looking watch with plenty of nice functions and easy to use. So far the only bad thing that I can say about it is the alarm is useless. You can only hear it if you are in a quite room with the watch up to your ear and then it is barely audible.

Too bad Amazon stopped allowing us to comment on reviews. Today's most popular review complains about a "LOW BATT" indicator, but he also states he uses the auto-light feature that illuminates the watch with a rotation of the wrist. That is the cause, and that feature should come with a warning from Casio.Avid outdoorsmen/boys, my sons and I all wear Casio three-in-one watches. One son's watch went through a LOW BATT episode. Since his was identical to the one I wore at the time we tried swapped watches, but since this didn't help, we knew it wasn't a user issue. I compared settings and found the only difference to be the auto-light active on my son's watch, and that turned out to be the problem. I turned it off and problem solved. We traded back and now more than a year later both watches are going strong, although mine is now strapped to the arm of another son. Those are the PRG-270 by the way, an excellent and bargain-priced watch -- especially when you can find it new from Amazon for under $90, as I did back in March of 2017. I don't know why Casio watch prices vary so much on Amazon, from Amazon as the seller.To wit: I paid $139 for this, my PRG-600, just over a year ago in June of 2020 but today it's listed for $189. It's worth $189; I was shocked when I stumbled upon it at the $139 price that was not any kind of deal, lightning or otherwise.I love this watch. It is thick and heavy, but I'm a middle-aged man who was born wearing a man's watch, so I'm used to it. I had a Swatch back in the 80s and I've had an ultralight dress watch or two but honestly, give me something I can feel, something I know is on my wrist. This does that and it looks great, too, but it doesn't scream money, so I'm not afraid to wear it in a questionable neighborhood.Typical or not I don't know, but my copy is not as accurate as other Casio watches I've had. Still, it it's not bad. It has lost a total of 26 seconds since I bought it, including 16 seconds between the last I set it in November of 2020 and today, July 23, 2021. (I set it to an atomic clock and make a note in my phone's calendar every time I set a watch, noting how far off it is.) This one might not be as accurate as my other Casios, but it is at least consistent. And two seconds per month isn't bad -- I've had much worse. When I was a kid I'd have been delighted with a watch accurate to two seconds per day.The only other caveat for you to consider is this PRG-600 uses the stem to set time and other functions, in a process that is not intuitive. You will not be able to adapt your experience setting Casio digital watches to setting this. I cannot say whether older digital-analog watches used similar procedures because this is my first triple sensor digital-analog watch.I suggest downloading a user's manual from Casio's website. It's free, and as with any Casio watch, to get the right manual you need only the four-digit module number that's engraved on the back of the watch. On this one it's 5497.Overall this is a nice watch with little to fault. Sure, it could be a bit thinner, and despite my earlier comments, a skosh lighter. I'd like it to have a feature to unblock the digital display from any mode, not just modes that require the display (maybe with a long-press of a button). And of course atomic accuracy would be nice, but that comes with an increased price I cannot justify. At this price point this watch can't be beat.

Muy elegante. Sus tonos no son altamente contrastantes. Hermoso aspecto

I love my Casio. I got bored of the Apple Watch and I went back to pure men, useful watch.Love that it's solar and I don't have to worry about charging it. Much less expensive than other options.I went swimming plenty of times in the ocean and the pool and so far so good.