CasioPRW3500 Series | Pro Trek | 100M WR | Compass | Alt/Baro-Thermo | Tough Solar Power | Atomic Timekeeping | 1-100 SEC Stopwatch | Countdown Timer | World Time

Bought this in 2019. Has been on my wrist since (over 6 years). No issues, shower with it on every day. Never an issue and always exactly on time. Only use the other function every once in a while, but always very close to accurate altitude, pressure, and compass heading. Love the metal band, only a few scratches and still looks new. I'm pretty hard on stuff, the face is still unscratched and bezel turns easily but doesn't drift. Would rate as a 6 out of 5 stars if able.

My response to the rise of smart watches has been a desire to go retro, and when it comes to retro digital chic, nobody beats Casio.My first purchase was a Casio F91W-1 Classic Resin Strap Digital Sport Watch, a truly low-end classic retro, to find out if I would even wear a watch after 10 years without one. I loved it, and as a time piece it is a bargain. But I wanted something bigger and chunkier.I really like the look of this 3500, the 3000, and the 2500. They have slightly different features, and it may be that you would get more use out of a tide graph over say sunrise/sunset times, in which case you are going to click over to the 2500 page. I decided I would buy whichever one came up for a great price, and it turned out to be this watch. If price is your thing, you need to add a plugin called keepa to your Chrome, as it tracks and charts the price of just about everything on Amazon. High-margin articles such as watches have very volatile prices, and if you can wait for a sale, you can save a lot of money.So I got a very good price, and I'm happy with the purchase, although the vendor sold me one that had been opened, perhaps as an in-store demo. However, there were no marks on it at all, no fingerprints etc, so I decided to run with it.It is fairly bulky, it is more than snug under close fitting sleeves, and makes it harder to remove Parkers and other winter clothing. Not a complaint, just an observation. The thick metal rim provides a lot of protection for the mineral glass and looks good. This ring has no detents and is too stiff to turn with one finger. The deeply recessed glass means that to scratch it, you need to whack it on a really awkward corner.The display may look similar to, say, the PRG-270, but in fact the numbers are noticeably bigger with more LCD area. So if you step down to a 270, you lose not just the radio control but a small amount of readability. The backlight is pale blue, lit by two LEDs on the left, but evenly lit across the face with no problem reading any part of the face. It has an auto-light when it detects you tilting your wrist - this triggers all the time, even when driving. I will turn this off for long drives at night (or just remove the watch).I leave the display switched to the barometer chart. It gives me a good idea what is going on with the weather. It has a long recording time, 48 hours I think, which is more than you really need. A 24 hour chart would be fine. Note that if you drive to work, with an altitude change, it is going to mess up your nice chart (I work from home).Which brings me to sensors. They appear to be very accurate. I calibrated the baro to the sea-level value for my location, using the website of the local university. Comparing the baro charts side by side, this watch is very accurate. The thermometer is fine, but obviously it records the temperature close to your wrist (usually in the range 75-85 degrees) and not ambient. If you google up a Stevenson Screen, you'll see that to reliably get air temperature, you need a specially constructed and vented box of around 1 cubic foot, double-roofed etc. So no complaints about the thermometer, please. The compass works fine, I would not navigate across open water with it, though.The radio receiver works for me about 2 days out of 3. I am a bit over 1k miles from Colorado. The instructions say to put the watch near a window that faces Colorado, etc, but I think solar winds and other overnight electrical/atmospheric noise make more difference. My watch gains about 2 seconds a week when running free, which is not nearly as good as my ten dollar F-91W (2 seconds a month).My watch struggles to stay on "H" (high) charge during the winter. The great advantage of solar watches is not that they run for ever (they wont) but that you can use energy sucking ancillaries like the sensors and the backlight without worry. My circumstances are, a dimly lit room during the day, and the sun is gone by the time I get outside. So the watch gradually discharges during the week and recovers at the weekend. This is fine, and is the reason why it has a power saving mode (turns off the display and eventually almost everything else during periods of low charge). The power saving mode is switchable but I can think of no reason not to use it. I would guess that the battery lasts as long as a regular battery in a regular watch with none of the goodies i.e. 7-10 years.It is waterproof to so many feet. I would take this with a grain of salt - google up wrist watch on wikipedia, the published depth ratings may not be what you expect. I am sure this watch is safe in the pool or in the shower, but why risk it? I take mine off.Overall I am very happy with this watch. I would not pay list price for it, not because it is not worth it but because you don't have to. If you are a Casio guy, and want a full-featured watch with all the bells and whistles, put this on your list.

Great watch. Great color. I don't know how durable the strap will be, but I like it.

This is one of the few casio watches where I keep the band it comes with. That said, I prefer the rangeman because it has date + baro at the same time on the face as a possibility. Sure, this has bigger display elements and is less cluttered, but it goes too far the other way. Where the face feels like it has wasted space. That said, we are still talking about what could be their best looking outdoor style watch. It's still tough solar. It's still crazy accurate. It still has features zero analog watches have, without requiring a tether to a phone for any of it.

NB:: THE CASE FOR THIS WATCH, AS SHIPPED IN Q1 2017, IS A HARD-COATED (EPOXY?) RESIN MATERIAL. THE CASE IS *NOT* MADE OF TITANIUM, THE CASE BACK IS STAINLESS STEEL. ONLY THE WRISTBAND IS TITANIUM.That caveat aside, my ProTrek PRW-3500T-7CR (Module 3134) is an emergency replacement for a tragically and irretrievably lost PathFinder PAG70-T (Module 2872).[While the PAG70-T has no Atomic Clock sync capabilities, what it has, in spades, is a very sharp looking, "dressy" appearance, as great looking with any suit as with any wilderness survival loadout. The PAG70-T's case is Titanium-clad-over-resin, with a stainless steel back and titanium wristband; no rotating outer bezel (which I have no need for), At the time of loss, my PAG70-T was still going as strong as Day One on it's original CTL1616 solar recharged battery. Even though the built-in calendar was due to expire in 2039, I was only going to cross that bridge in 2040, The countdown timer has final 1min, 50sec, 40sec, 30sec, 20sec, 10sec then 1sec interval warning beeps before the final countdown chime. If left uncancelled, the countdown timer would automatically lap and repeat the original countdown. I found that to be an unbelievably useful countdown feature. All PAG70-T alarms are clearly audible across a reasonably quite room and/or under a jacket sleeve. I seriously miss that PAG70-T. For all that I put it through, not a single scratch or nick anywhere on it.]On paper, the PRW-3500T-7CR out-classes the PAG70-T's specs. Atomic clock sync (which works every time for me, on a daily basis, some 2000kM from Fort Collins, with a "L1" signal strength, as reported by the watch). Built-in calendar through 2099. 200M static water resistance. So-called "V3" triple sensors. Etc. But I'm still getting used to the PRW-3500T-7CR, and I'm not quite as impressed with it as I hoped to be.The alarms on the PRW-3500T-7CR are surprisingly and disappointingly WEAK. A covering jacket or other thick sleeve is more than enough to smother these weak alarms. The countdown timer has no final minute intermediate chimes and cannot be set to auto-lap when left uncancelled. Alarm durations are 10 seconds, at best, and are not configurable for longer notifications. One of the five daily alarms is a "snooze" alarm that repeats at intervals for 30 minutes. But what good is a snooze alarm if you can't hear it?I'm forced for the time being to wear my PRW-3500T-7CR on my right wrist. For some reason, after several reference temperature calibrations, the V3 thermometer gives closer to actual room temperature readings, while uncovered wrist worn, than the PAG70-T; typically less than 5 degrees Farenheit warmer than ambient air temp. Sleeve cover will obviously skew wrist worn temperatures higher than ambient room, due to confined body heat..The V3 compass is very accurate when compared with GPS readings and the PRW-3500T-7CR compass can be calibrated (by 1 degree increments) for declination (the PAG70-T has no compensation for declination).The V3 barometer is reasonably accurate following a 12-day series of daily calibration check/settings at constant reference altitude.The V3 altimeter is surprisingly and sometimes wildly inaccurate when compared with GPS, even more so than the older PAG70-T. I am seriously doubting that any amount of altimeter calibration is going to achieve more accurate readings, but I am optimistically still continuing with once daily calibration checks at reference altitude.Sunrise and sunset times are highly accurate, once longitude and latitude are manually and correctly entered into Settings. This is not the same as merely setting the Time Zone, unless you happen to actually be located in one of the preset Time Zone cities.My PRW-3500T-7CR illuminates very evenly across its face in a dark room, even though there is only a single light source, eminating from the left side of the watch face, If your's doesn't illuminate evenly across the entire watch face, then you may have a lemon worthy of prompt return/replacement.The PRW-3500T-7CR is significantly larger than the PAG70-T, which may present problems for smaller wrist sizes. I had to remove four (4) wristband links, two on each side of the locking clasp, in order to achieve a functionally comfortable fit.WRISTBAND ADJUSTMENT NB:: Each link pin of the titanium wrist band is retained in place by a single 1mm diameter split "clinch barrel ring" that too readily slips in and out of the one "receiver" side of the short prong of each link (when disassembled). When fully and properly assembled, the link pin passes through this tight clinch barrel ring and the clinch barrel ring prevents the link pin from sliding out of the wristband (preventing band failure) by sheer friction with the link pin. What is not immediately apparent to an inattentive observer is that the link pin also holds the clinch barrel ring in its proper place, between wrist band links. Once a wristband link pin is removed, THAT CLINCH BARREL RING WILL *IMMEDIATELY* FALL OUT OF PLACE AND CAN BE VERY EASILY LOST. I know of absolutely no source for replacement clinch barrel rings for this wristband. When I disassembled my wrist band, I did so over a reasonably large disassembly tray (18inx18in), with a surrounding raised lip edge (1") and a non-bounce white tray liner. As each link pin was carefully removed (observing the directional arrows engraved on the wrist-side of each removable lnk), using only the force absolutely necessary and a proper pin removal tool, I could see the TINY clinch barrel ring fall onto the tray liner (and then set it aside for safekeeping). When reassembling shortened links, I had to use needle tip tweezers to place the clinch barrel ring back into the RECEIVER SIDE of the stub link, oriented UPWARDS toward me, so that *gravity* would hold it temporarily in place. Then I used a positionable vice grip to hold the two links together, while I reinserted the link pin, through the links and the clinch barrel ring. The vice grip temporarily held the links together in-place, such that I could rotate the band, with the clinch ring now facing downward, as I gently drove the link pin back into place from above. This was the least tricky and most first-try successful way to adjust the length of the wrist band. Should you decide to adjust your own wrist band, whatever you do, do not lose the clinch barrel rings. Without them, the link pins will fall out and you will have band failure. The only durable and reasonable kludge for a lost clinch barrel ring would be "red"-grade (permanent) ThreadLock on BOTH sides of a fully inserted link pin.As always, Casio Customer Service is DISMAL at best. If you get a lemon, replace it with the seller right away for one that works 100% as advertised. Casio Customer Service depends on their products not failing -- and for the most part, when a Casio watch works AOK from Day One, it will continue to do so until you lose it or destroy it. Casio Customer Service has never ever "been there for me" and I have learned that lesson only too well.