---
product_id: 1094735
title: "Men's G-Shock MTGM900DA-8CR Tough Solar Atomic Stainless Steel Sport Watch"
brand: "casio"
price: "¥36692"
currency: JPY
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.jp/products/1094735-mens-g-shock-mtgm900da-8cr-tough-solar-atomic-stainless-steel
store_origin: JP
region: Japan
---

# Multi-Band 6 Atomic Timekeeping - global precision 200m Water Resistance - dive-ready durability Tough Solar Power - endless energy Men's G-Shock MTGM900DA-8CR Tough Solar Atomic Stainless Steel Sport Watch

**Brand:** casio
**Price:** ¥36692
**Availability:** ✅ In Stock

## Summary

> ⌚ Own Time, Own Style — The Solar Atomic Powerhouse for the Modern Pro

## Quick Answers

- **What is this?** Men's G-Shock MTGM900DA-8CR Tough Solar Atomic Stainless Steel Sport Watch by casio
- **How much does it cost?** ¥36692 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1094735-mens-g-shock-mtgm900da-8cr-tough-solar-atomic-stainless-steel)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged Elegance:** Stainless steel case & band with shock-resistant resin for a sleek yet tough look.
- • **Smart Visibility:** Auto-activated blue-green EL backlight ensures you never miss a beat in low light.
- • **Global Time Mastery:** Auto-syncs with 6 atomic clocks worldwide for flawless accuracy wherever you go.
- • **Dive Deep, Stay Stylish:** 200-meter water resistance means this watch thrives in any aquatic adventure.
- • **Unstoppable Solar Energy:** Harness sunlight for up to 9 months of power without a battery swap.

## Overview

The Casio G-Shock MTGM900DA-8CR is a solar-powered, atomic timekeeping sport watch featuring a durable stainless steel and resin build, 200-meter water resistance, and world time across 48 cities. Designed for professionals who demand precision, toughness, and style, it offers multi-band 6 radio sync, a 1/100-second stopwatch, countdown timer, five alarms, and an auto EL backlight, all wrapped in a sleek, shock-resistant package that never needs a battery change.

## Description

Immerse yourself in precision timekeeping with the G-SHOCK MTG-M900DA-8. This upgraded model not only syncs with Chinese radio transmitters but is also powered by solar atomic technology, ensuring consistent and reliable time accuracy. Whether you're globetrotting or managing a busy schedule, the expanded world time mode covering 48 cities keeps you updated with global time zones. Built to endure, the G-SHOCK MTG-M900DA-8 showcases toughness at its core. Its robust silver stainless steel band withstands the rigors of daily wear while maintaining its stylish charm. The neutral digital face houses a practical countdown timer, replacing the time memo function of the previous model, and adds a layer of versatility to your time management. With its blend of toughness, solar atomic accuracy, and sleek stainless steel design, the MTG-M900DA-8 is more than just a timepiece—it's a statement of durability and style. Casio 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. New and improved but at the same low cost!!! This casio atomic tough solar sport watch has all the bells and whistles. With a stainless steel case and matching bracelet with a fold over push button clasp to compliment the many features. Includes multi band 6 atomic timekeeping, full auto el digital display with day, date and month indicators, four daily multifunction alarms and 1 snooze alarm, world time function (48 cities plus utc) , 1/100 second stopwatch with (24 hr), 12 and 24 hour time formats and 24h countdown timer. Water-resistant to 200 meters. One-year limited manufacturer warranty.

Review: Nice bang for the buck. - 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 desertcart (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.
Review: Great Watch! - 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 desertcart 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 desertcart, but I actually STOLE it from them! I paid less for this watch here on desertcart than I paid for that cheap Timex! I did that by using a small gift card balance & a combination of 2 or 3 desertcart 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!

## Features

- Tough Solar Power & Multi-Band 6 Atomic Timekeeping: Enjoy precise timekeeping with radio-controlled accuracy across six calibration signals worldwide, powered by Casio's efficient solar technology for continuous operation.
- Durable Stainless Steel Construction: Features a robust stainless steel band with a one-touch 3-fold clasp and a shock-resistant resin/stainless steel case, providing both durability and a sleek, sophisticated look.
- 200-Meter Water Resistance: Built to withstand extreme conditions, this watch is suitable for professional marine activities and serious surface water sports, offering water resistance up to 200 meters (660 feet).
- Versatile Timekeeping Functions: Equipped with world time across 31 time zones (48 cities), a 1/100-second stopwatch, 24-hour countdown timer, and 5 independent daily alarms (including a snooze alarm) to keep you on schedule.
- Electro-Luminescent Backlight with Full Auto EL: The blue-green EL backlight with afterglow ensures optimal readability in low-light conditions, automatically activating in dim environments for your convenience.
- Energy Saving & Long Battery Life: The power-saving function turns off the display when left in the dark to conserve energy, providing approximately 9 months of operation on a full charge without further exposure to light.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0094BKASS |
| ASIN  | B0094BKASS |
| Additional Features | Glow In The Dark, Alarm, Easy Reader, Timer, Light Up, Shock Resistant, World Time, Calculator |
| Age Range Description | Adult |
| Band Color | Silver |
| Band Material Type | Stainless Steel |
| Band Width | 16.6 millimeters |
| Bands | 6 |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #102,262 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #249 in Men's Wrist Watches |
| Bezel Color | Silver |
| Brand Name | Casio |
| Case Diameter | 45 millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 16 millimeters |
| Clasp Type | fold-over-push-button-clasp-with-safety |
| Closure Type | Push-Button |
| Crystal | mineral |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,653) |
| Date First Available  | December 27, 2012 |
| Department  | Jewelry & Watches |
| Dial Color | Gray |
| Display | Digital |
| Embellishment Feature | Crystal |
| Face Style | Digital |
| Global Trade Identification Number | 00079767975227 |
| Included Components | Battery |
| Item Type Name | Sports Watch Mens Tough Solar Atomic Stainless Steel Sport |
| Item Weight | 9.07 g |
| Item model number  | MTG-M900DA-8CR |
| Manufacturer | Casio |
| Manufacturer  | Casio |
| Manufacturer Part Number | MTGM900DA |
| Model Name | Casio Atomic Tough Solar Sport Watch |
| Model Number | MTG-M900DA-8CR |
| Model Series | G-Shock |
| Number of Items | 1 |
| Power Source | Solar Powered |
| Product Dimensions  | 1 x 1 x 1 inches; 0.35 ounces |
| Shape | Round |
| Sport Type | excercise_&_fitness |
| Strap Type | Bracelet |
| Style Name | MTGM900DA-8CR |
| Theme | Sports |
| UPC | 079767975227 |
| Unit Count | 1 Count |
| Warranty Type | Manufacturer |
| Watch Movement Type | Japanese Quartz |
| Water Resistance Depth | 660 feet |
| Water Resistance Level | Water Resistant |

## Images

![Men's G-Shock MTGM900DA-8CR Tough Solar Atomic Stainless Steel Sport Watch - Image 1](https://m.media-amazon.com/images/I/71-rTgTiXiL.jpg)

## Questions & Answers

**Q: How loud is the alarm?  can i rely on it to wake up every day like i do with my timex ironman?**
A: no it is pretty soft and only audible if u are a light sleeper

**Q: Ok so watch is waterproof, but how will stainless steel band hold up to 1hr/day of lap swimming or taking my son swimming a few hrs per pool visit?**
A: Band is durable (no rust = nothing visible)

(Weak points)

plastic pieces (6 & 12 that connects to band = brown/tan/gray pieces) dry rot 1.5+ years of 24/7 use (sun, sweat...)

Screws & pins (attachment points for band & links = will corrode, stiffen up... Only noticable when swapping bands/links)

**Q: By chance, is there a comparable "non-metal" wrist band that works with this watch?**
A: You might try the CASIO BLACK RESIN-OC-500-1A the band with at the watch head is 24 mm and the band that comes with the watch is 23 mm.  I think it should fit.

**Q: can you shower with this watch? also is there any special way to clean this?**
A: I have been to war with this watch.  In fact, I have owned this watch for more than 10 years.  I have rarely taken it off at all.  Will it survive a shower you ask.  It has survived hours in the ocean, rivers, creeks pools, hot tubs, you name it.  It is a beast.  One full charge from exposure to the sun and you can go dark for 9 months without sunlight.  It is hands down the best watch I have owned.  The only visible difference between day now to day then is the black lettering is no longer black, it is now just the same color as the engraved stainless steel.  The steel band feels like quality and it looks great.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice bang for the buck.
*by T***N on April 9, 2024*

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.

### ⭐⭐⭐⭐⭐ Great Watch!
*by W***R on March 18, 2014*

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!

### ⭐⭐⭐⭐⭐ rugged and convenient
*by M***P on August 18, 2026*

I just got this watch yesterday so I am still in the process of setting it up. I am an old guy and not very good at programming things. I had just purchased another Casio solar/atomic watch and so far I love it. I am still active and work on cars and other normal activities and have learned the G Shock series of watches is really good. This one has a stainless skin in addition to the plastic parts and was a good price. The box had been opened and I notified Amazon in case there is a problem. All contents were there and there were no signs of damage of any kind. The screen was blank so the battery was not charged so I set it in the sunshine yesterday and today and it is now functioning. I set my city in and a couple of other features and tonight I will sit it in a window as the directions request for receiving the radio signal. Hopefully tomorrow morning it will be all set. This should be a perfect watch for me. I have trouble with technical things and I can be hard on a watch. The G Shock feature plus no battery replacement and solar/atomic operation should take care of my timepiece needs. I really like the other Casio but I should like this one even more.

## Frequently Bought Together

- Casio Men's G-Shock MTGM900DA-8CR Tough Solar Atomic Stainless Steel Sport Watch
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-03*