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  • Casio Men's MTG900DA-8V G-Shock MT-G Atomic Tough Solar Watch
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Casio Men's MTG900DA-8V G-Shock MT-G Atomic Tough Solar Watch

The color of the watch band: silver
Currently unavailable.
We don't know when or if this item will be back in stock.
  • Quartz movement
  • Auto receive function (4 times per day); signal: WWVB, Frequency: 60kHz
  • Auto EL backlight with Afterglow; world Time
  • 29 times zones (48 cities), city code display, daylight saving auto on/off
  • Water resistant to 660 feet (200 M): suitable for recreational scuba diving

Watches with manufacturer warranty

  • Casio
  • Casio
  • Casio
  • Casio
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Product Description

This Casio G-Shock digital watch offers a stylishly rugged look, world-savvy features ideal for business or adventure, and a durable design. The watch's atomic timekeeping calibrates the displayed time with radio signals to ensure a high level of accuracy, and the tough solar power offers a battery life of approximately 11 months on full charge without further exposure to light. The watch is built with a round stainless steel bezel, stainless steel case, and a stylish stainless steel band with a fold-over push-button clasp. The digital window shows the time in a bold central display, with world time settings for up to 29 time zones (30 cities), daylight savings option, and a city code display. The digital window also conveniently shows the day of the week above and the month and date below, automatically pre-programmed through 2099. The battery power level and calibration signal reception are indicated on the sides. This watch also offers four daily alarms and one snooze alarm, a time recorder, a 1/100 second stopwatch function, and a handy automatic EL backlight with afterglow. Specially designed for shock resistance and water resistant up to 660 feet.


With the launch of its first watch in November 1974, Casio entered the wristwatch market at a time when the watch industry had just discovered digital technology. As a company with cutting-edge electronic technology developed for pocket calculators, Casio entered this field confident that it could develop timepieces that would lead the market.

Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, atomic timekeeping means the users never have to reset the time. Recently, Casio launched a series of Bluetooth watches that sync to the users cell phone to automatically update the time. Casio is always moving time forward.

  • ASIN: B00134L8XU
  • Product Dimensions: 5.9 x 5.9 x 5.9 inches; 8 ounces
  • Shipping Weight: 8 ounces
  • Item model number: MTG900DA-8V
  • Amazon Best Sellers Rank: #13,030 in Watches (See Top 100 in Watches)
    • Average Customer Review:

    Product Specifications

    Watch Information
    Brand, Seller, or Collection Name Casio
    Model number MTG900DA-8V
    Part Number MTG900DA-8V
    Model Year 2011
    Item Shape Round
    Dial window material type Mineral
    Display Type Digital
    Clasp Fold-Over Push-Button Clasp with Safety
    Case material Stainless steel
    Case diameter 5.5 centimeters
    Case Thickness 17 millimeters
    Band Material Stainless steel
    Band length mens
    Band width 24 millimeters
    Band Color Silver
    Dial color Grey
    Bezel material Stainless steel
    Bezel function Stationary
    Calendar Day, date, and month
    Special features solar, Water Resistant, World time
    Movement Quartz
    Water resistant depth 660 Feet

    Customer Questions & Answers

    Customer Reviews

    Overall one of the best watches I've ever owned.
    Amazon Customer
    It's recharged by solar power, so no need to worry about batteries, and the time is synched with the atomic clock so there's no need to worry about it being accurate.
    Jack Fox
    The band is very nice, all in all the watch looks great.
    Corey Smith

    Most Helpful Customer Reviews

    172 of 173 people found the following review helpful By D. Matheny TOP 100 REVIEWERVINE VOICE on August 23, 2008
    The color of the watch band: silver
    I've had this watch almost 5 years now, so I thought I should sit down and write a quick review of it. I'm the kind of person that tends to break a lot of watches, so it's amazing to me that this watch has lasted this long at all - although the buttons and part of the front bezel have been beat up pretty good.

    First, the things I really like about this watch are:
    1) Because it sets itself off of the atomic clock in Denver every night, it is completely accurate - the longer I wear it, the more I find myself setting all the other clocks I use by this watch. As a reference, I live in Austin, TX and have never had a problem getting a signal - it also picked up the change in daylight savings when congress decided it needed to change the dates (thanks to the atomic clock).
    2) The solar power is also a great feature, I've found that it sits on full power from about March through November each year. Once the days get noticeably shorter, it tends to settle on the second highest battery setting until spring. This doesn't impact the performance at all, but it does give me an idea how much sunlight I'm getting.
    3) This thing is completely waterproof and very tough. Believe it or not, I actually throw it in the dishwasher when it gets dirty and it comes out sparkly clean. It's been through some beatings that would have completely destroyed pretty much any other watch and it still works perfectly.
    4) I really love the auto-backlight feature. It's very convenient not to have to push any buttons to see the time at night.
    5) I also like how easy it is to adjust the time by just changing the timezone whenever I travel.
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    135 of 139 people found the following review helpful By JohnVidale on February 8, 2007
    The color of the watch band: silver Verified Purchase
    I surveyed vast field of digital choices before getting the watch a month ago, and I'm well satisfied. Most digital watches (as opposed to analog with hour and minute hands) are ugly, IMO, so my surveying has mainly been frustrating. I found a nice line of digital Casio Edifices, with big digits and glimmering colorful faces, which served for a while, but has apparently been discontinued a year or two ago, and my last one quit working two months ago.

    I bought this watch, grimacing at the price, just because it wasn't particularly ugly and had big digits, but it exceeded my meager expectations. The manual was a bit of a slog - it took about 20 minutes to read, but well worth it.

    The features are outstanding - about 5 alarms, one of which can be set for snooze alarms, the expected stop watch, easy access to Greenwich Meridian Time, markers for noting times, a backlight, waterproof enough for scuba diving (not that I dive).

    The special features include checking with a radio signal daily so the time is always correct (important for catching my buses and winning arguments about what time it really is), solar power (so run-down batteries should never be a problem), and backlighting that turns on when one turns one's wrist (surprisingly convenient). A nice touch is when one cycles back to the time, the watch gives a different unobtrusive beep.

    There are other features available on other watches - tape recorders, flash drives, altimeters, compasses, but none that sound remotely useful in the long run.

    I had to shorten the well-built wriststrap by 5 or 6 links, a little tricky, but any watch shop could do it in 5 minutes.
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    131 of 136 people found the following review helpful By John S. Johnston on August 5, 2008
    The color of the watch band: silver
    I bought my Casio MTG900DA-8V over four years ago, and I was surprised to find it still being produced and sold by Casio as I browsed Amazon's watch selection.

    Overall, I think it is a great timepiece, and I have never regretted buying mine. But, you will notice that I only gave it four stars, because like anything made by man, it isn't perfect. Here's the scoop:

    1. Superb accuracy. I live near Atlanta, Georgia, which is probably close to the limit of this watch's radio reception range. But even here, my watch will sync with the atomic time station over 99% of the time. But as another reviewer said, you will probably have to experiment with locations within your house where you leave the watch for its overnight radio sync process.

    2. Not just water-resistant, this thing is waterproof. I have worn mine while doing all kinds of nasty chores, including mowing, weeding and related dirty jobs. And when I get in the shower afterward, I just leave the watch on so that it gets a good clean-up, too. Never a problem.

    3. Very tough. Again, I've worn mine doing some pretty harsh work, including using a chain-saw, axe and hammer. Never a problem.

    4. The solar power is great. Some people may think that solar power is a gimmick, but here's the deal: since you should never have to replace a battery, your water-resistant (or waterproof) watch will stay that way. All my previous watches, including some pretty expensive ones, lost their water-resistance after they had a battery change. (Casio does say that their rechargeable batteries may need replacing some day, but mine are still going strong after more than four years.)

    1. This watch is BIG.
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