Men's G-Shock MTGM900DA-8CR Tough Solar Atomic Stainless Steel Sport Watch

Casio’s G-Shock is noted for toughness and durability, and the MT-G line is something more. The MT stands for “metal twisted” - the entire line has a unique feature I’ve never seen elsewhere. Much of the metal used on the case of a G-Shock MT-G watch is just an outer shell, filled inside with the same hard resin used to make cases in most other G-Shock watches. You get the strength and appearance of a classy, metal watch, but the lighter weight of a plastic resin watch. When you pick this watch up, it weighs much less than you expect it to, but it’s still a G-Shock and every bit as durable. In addition to the usual features found in most modern G-Shock watches (world time for 48 cities, alarms, countdown timer, stopwatch, 12/24 hour time display, DST function), this watch has two more, less-common features: Tough Solar and Multi-Band 6. Tough Solar means that the watch uses solar cells in the face to recharge a capacitor - no more replacing batteries. With my Tough Solar watches, I find that an hour or two of bright, direct sunlight a month is enough to keep the capacitor at high charge (the display has a power reserve indicator on the top left). When you don’t wear the watch for a while, darkness will trigger power save mode, shutting down most of the display to extend the battery charge duration; only the power save indicator stays on. You can press a button or expose the watch to light to wake it from power save mode. (You can disable power save mode in the settings, but this is only recommended if you wear it frequently and it gets some direct sunlight now and then - such as if it’s the only watch you wear and you spend some time outdoors regularly, or you often leave it on a bright window sill.) With power save on at full charge, the watch will go for nine months before the capacitor is drained - never let a capacitor get to zero charge; it will likely need to be replaced. Multi-Band 6 means that when you’re in most of North America, Europe and Asia, your watch will use a built-in receiver to pick up a time sync signal from one of six radio stations worldwide that are linked to atomic clocks - this happens daily, is automatic (it usually tries in the early morning hours when most people are sleeping), and means that your watch is as accurate as you can get without spending a fortune. Radio signals from these stations can be difficult to receive under certain conditions - such as inside a steel-and-concrete building away from windows that face the right direction, or on the side of a large hill or mountain that faces away from the station. In these cases, you can manually trigger a time sync when you are in conditions more conducive to longwave radio reception. If that fails, you still have the option to manually adjust the time as needed. (For reference, the US signal is from an NIST facility broadcasting just outside of Fort Collins, Colorado, so for most people in the US, anything obstructing radio signals north and/or west may prevent a time sync; the closer to the signal you live, the stronger it should be.) I left out the best for last. This watch is the absolute least expensive MT-G model on the market today. Granted, it isn’t as fancy or classy-looking as the other MT-G watches, but most of them start at $950 (for a model with a titanium case and resin bands) and go up to as high as $1450 at the time I’m writing this. Many models are limited editions and frequently sell out fast. This is because most of the MT-G line, with the exception of this watch, are completely analog but have most of the same, exact functions as this watch - they’re considered high-end, fashionable collectibles. They’re also hand-crafted in Japan; this one isn’t. (Most Casios are made in either China or the Philippines.) Even if you “step down” to a “Full Metal” G-Shock (all-steel case and bracelet), they typically run between $500-$600, and the G-Steel line (steel cases, resin or rubber straps) are a few hundred dollars - even on sale, they cost more than this one! At the time I’m writing this, Casio sells this model direct to consumers for $170, and Amazon (not a third party seller) sells it here for some pennies under $100. If this was too long, here’s the summary: you get an excellent feature set for a bargain price with all the toughness of a G-Shock, and a look that wouldn’t be out of place with a suit and tie. Never needs a battery, always has the right time within a second or so.

Bought almost this same exact model (MTG-900) over 14 years ago in Hawaii when my previous G-Shock with the black plastic/rubber watch band was lost to the Pacific ocean. I have to be wearing a watch. Have since I was a 10 or 12 year old. So I went to Costco to see what they had and that was the closest I could get to what I had. Was not happy about the stainless band. Had never had a metal band before but it was only $70 and was a G-Shock. Would probably never go back to any other band. Slip it on and close the clasp and ready to go. It has never worn out/broken like the black plastic ones do. The watch itself is awesome. The only reason I bought this as a replacment was that the luminescent back light was not staying on when the button was pushed. It would blink on and off really quickly. Thought maybe it was dying and then got the idea to replace the battery, which I had never had to do up to that point. After all, it is solar powered. Anyways, all it was was a dead battery (which is a rechargable CTL1616 watch battery). The solar power is what recharges/keeps it charged. After 14 years it could no longer keep a charge or fully charge (there is a little 3 segment display on the watch indicating level of charge which I had never even noticed or payed attention to). Replaced the battery and did a lot of cleaning of all the rubber and chrome pieces and it is almost like new. Now I have a spare watch for when this thing actually does die permanently. I have never had to worry about keeping it charged or anything like that (never even noticed that there was a gauge), although I have always worn short sleeve shirts and I am in the Sonoran desert after all, which probably helps. Love the atomic time keeping function which works great in my locale. Place the watch on the window sill each night and I have 100% accurate time all the time. The LCD is highly visible at all angles unlike some watches that have matrixed LCD displays. 14 years and barely any visible scratches on the crystal. Has all the features I need. Some reviews complained that the LCD characters are too small but I am 61 years old and use reading glasses and I can see the characters without those so they are big enough for me. This will probably be the watch I will be wearing when I die and there is a good chance I'll never need this spare. The fact that they are making this exact same watch (essentially) for at least more than 14 years tells you all you need to know.

After losing a bidding war on a much older version of this watch, I started researching info on this newer version & decided that this was the Casio that I wanted to be my new watch. I went to a local store to check it out & was very pleased with it. I already have the basic g-shock dw5600 that I bought here on Amazon a year ago to replace another DW-5600 that finally bit the dust after 15 years of very hard use.. This newest dw model is my 4th one in 40 years of owning these. 1st one I had for only 1 year before I decided to intentionally try to break it. That was rather hard to do until I got a 5lb. ballpeen hammer & set the watch on a concrete slab & then it finally broke. I was so impressed with how rugged the watch was that I immediately rushed out & bought another one that lasted about 15 to 20 years. But I wanted this MTG900 because I liked the 'dressier' looks for those times when I'm not at work. I also wanted the Atomic timekeeping function & the Solar function. I had a cheap Solar Timex that I liked but died after only a year of light use. So I'm extremely happy with this MTG900 which has everything that I want - solar, atomic, & looks very classy & is likely to last a very long time. Don't tell Amazon, but I actually STOLE it from them! I paid less for this watch here on Amazon than I paid for that cheap Timex! I did that by using a small gift card balance & a combination of 2 or 3 Amazon special offers. I read a lot of negative reviews on this watch that referred to things such as: the manual is so small it's unreadable - all Casio manuals are like that, just go to their site & D/L a pdf manual. Others said it wasn't fully charged when they got it - mine was but that's easily remedied by setting it near a window. Some people complained that it came in a cheap, flimsy box - yeah, I agree that it wasn't as nice as the box my other Casio had, but I didn't buy this for the box, so no big deal! Still others said it was hard to figure out the different settings on this watch - I only care initially that my watch keeps accurate time to begin with, I'll learn the finer points as I go, just like I did with the dw5600 - again,either read the manual or just do a google search on this & you'll find many articles & even several videos explaining the many functions of this. A lot of reviewers mention that the band is way too big as it comes from the factory & I do agree that you do have to do some adjustments to make it fit. There's a video that explains how to do it. And yes, it was a royal pain in the neck to do, but you should only have to suffer through it once & be done with it. I already had a little tool with different tips that I bought here to use when I switched out the dw5600 band for a more comfortable nylon one & that little tool was a real help in removing the links on this one. That tool only costs five bucks & worked better for me than using a jeweler's screwdriver. So... to sum it all up, I really like this watch because: it's very comfortable to wear, band does not pinch my skin like other metal bands - It looks better than the dw5600 - it's very easy to read because of it's rather plain face(something my old eyes really appreciate) - and lastly, the price was right (truth be told, even if I pd. regular price I'd still be happy). If your looking for a nicer watch but still want something built to withstand a little abuse you can't go wrong with this one!

Bought this on sale at just under $100, and, wow what a great watch for the price. It's an older style (originally a 2012 release), mostly metal, but it is by far the least expensive MT-G labeled Casio out there. The MT-G line is a big step up from the regular G Shocks. And, most of the new MT-G watches go for $1,000+ new. This watch has almost the same features- solar charging, multi-band radio time synching, 200M water resistance, and the stopwatch, timer, world time, and the rest. It does not have bluetooth, which seems to be the most recently added feature. Otherwise, it has the bells and whistles. It is made in Thailand and not in Japan. But, if you like the look, it's a real bargain. I've been wearing Casio solar, radio synching watches for years now and they are well made and last. The metal band requires adjustment, which can be daunting if you are not familiar with how these link-type bands work. I found it w=easier than some Seiko bands to adjust. BUt, it does take a little time and knowledge. So I would suggest watching a video if you've never done it before. It took me about 15 minutes to remove the links needed and to fit the watch to my wrist. It is really quite comfortable, once properly fitted, but much heavier due to all the metal, than a standard resin Casio. My watch came in a rather plain and crushed G Shock cardboard box, but it was all there. So there wasn't any upscale packaging. Perhaps the box had been opened before, but the watch is fine and all the paperwork was there. If you like the style, go for it- you won't find a better watch for under $100.

Very nice watch, especially at the price point. I have a huge collection of Seiko Automatics, Citizen Eco Drives, and many other brands. This watch is now in the rotation of watches I wear daily. It is good looking and hefty without being too heavy. It is easily readable and has all of the functions that I want and several I will not use. Adjusting the band is easy, a jewelers screwdriver worked for me. It does take patience and a little dexterity. Some watch experience helps too. I have an average sized man's wrist, and I took out 4 links. Even a huge person could wear this watchband. I almost gave it 5 stars, but the face is a little smaller than I usually like. A good bit of the 46mm case is used up with chunky metal and signage. Also, the radio timekeeping function did not manually work. When synching to the radio it went to L1 (low signal) and I received an ERR (error) after about a minute. It might work outside; I didn't try that. The watch DID synch with the radio overnight and update and it is now in perfect time with my other radio-controlled watches. If you keep this watch in the dark for an extended period of time all functions stop including the synch function. That said, when I took it out of the box into the light, it took about 2 or 3 seconds to light up and the time was only off by 2 seconds compared to the official clock online and my other atomic watches.

I first bought this model watch in 2010 at Walmart. The watch itself was fine, but the metal band and pins started wearing so I replaced the band and not too long after the plastic piece holding to the band cracked and broke off in 2017ish. I'm on my second watch of the same model and the band has lasted this time, but the plastic is cracking in the same spot and will eventually detach itself again. In preparation for this I purchased my third watch of the same model. I wish I didn't have to replace my watch because of this one flaw, because as you can see my first watch still works fine even after sitting in dark storage for 7+ years. I pulled it out for curiosity and set it out by a window (that doesn't get direct light) to charge and it came to life in a couple of days and charged up slowly after and is working fine. I searched for an alternative G-Shock that might have more longevity on the band mount that fit what I wanted, but it just doesn't exist. I like the size and durability of this watch as I wear it daily and even use it while working on cars, yard work, washing dishes, hiking, and so on. Basically unless it just gets in the way or I'm at home in comfort mode I have this watch on. It puts up with the abuse I put it through. I also want a metal band, not a rubber or plastic one as most G-Shocks have. Because of this I have chosen to live with replacing my watch every 7-8 years until they stop making this model. I guess I can't complain too much as it is a $100 watch and has been a $100 watch since 2010. I paid the same in 2017 and 2025. I am surprised the same model has been around so long and retained the same price. It is very comfortable to me. The readout is big enough that it's easy to read on the fly. On my watches that were in use the battery never dropped below High and I'm not a person that spends a ton of time outside, but the solar manages to keep it charged without any special considerations. The place I put it when I take it off at home is not near a window. The band can be a be tedious to adjust, but it doesn't require a jewelry tool. A precision flathead screwdriver works for me to remove the pin.

Best watch I have ever owned. Had one for many years and it finally gave up. Bought one just like it and it works perfectly. Sets itself each night and no need to mess with time change. Looks nice and works great.

Things I like: this watch is very readable, it has a good backlight, the buttons are fairly easy to push, and it has all the standard features. As it has solar power there is no need to replace the battery periodically. The bracelet is comfortable once you size it correctly. If you push the 'B' button in regular timekeeping mode the day and date are replaced with your world time, so you can easily keep track of the time in two time zones at a glance without having to push buttons. Things I don't like: The bracelet has hollow links, and is a bit jangly, but at this price point that's still acceptable. Sizing the bracelet is a bit of a chore, you will need a spring bar tool. The watch is a bit thick. I wish it had a 'swap' feature that switches the local and world time zones. Like almost all Casio watches it has a quiet alarm beep, which is impossible to hear in a noisy environment. This is probably not a watch to wear with a suit, but it's a decent, robust, and sporty watch that will always show the correct time if you live within range of one of the radio transmissions it uses to synchronize the clock (and you set it up correctly). Like all metal watches it will get scratched up a bit, but that's par for the course.