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Casio Men's G2310R-1 G-Shock Tough Solar Power Digital Sports Watch
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Product details
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MaterialResin
About this item
- Solar-powered sports watch with silver-tone accents featuring daily alarm with snooze and 12/24 hour format
- 42 mm stainless steel case with mineral dial window
- Japanese quartz movement with digital display
- Features silicone band with buckle closure, auto EL backlight, 1/100-second chronograph, and world time for 31 time zones and 48 cities
- Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving
- Light color: EL:Blue Green
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Product Description
Casio Tough-Solar G2310R-1V Wristwatch
Innovative technology combines with modern styling to bring you the Casio Men's G-Shock Tough Solar Power Watch. With helpful text lining the black resin bezel, it's easy to program handy functions like the stopwatch, countdown timer, five alarms, World Time with 31 time zones, and 12- and 24-hour formats. You'll love the convenient and solar-powered battery, which can operate for up to 11 months on a full charge. A bright EL backlight automatically turns on with the movement of your wrist, and the round, black dial features clearly divided sub-dials with a wealth of information, including a day, date, and month display. With reliable shock resistant technology, a water resistant depth of 660 feet (200 meters), and a durable black resin strap, this cutting-edge timepiece is perfect for the adventurous man.
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.
From the manufacturer

G-SHOCK
The most durable digital and analog-digital watches in the industry, trusted by military personnel, law enforcement, surfers and outdoor enthusiasts around the world.

Solar Powered
Casio solar-recharging system converts even faint light from fluorescent lamps into ample energy to achieve stable operation of various high-load functions.
Pursuing Absolute Toughness
Shock Resistance
Shock-resistant construction protects against all sorts of impact and vibration.
20-bar water resistance
You can wear your G-SHOCK in all sorts of situations, from working with water in daily life and taking a shower to participating in water activities such as swimming, surfing or jet skiing.
EL Backlight
With the EL Backlight, you can see the watch face in any situations without light.

Our Values
"Necessity is not the mother of invention, invention is the mother of necessity." These are the words of one of Casio's founders. The people who created Casio were determined to 'invent necessity'- to create products that met latent needs with groundbreaking capabilities no one had ever seen before. Ever since, Casio has been doing just that, bringing new discovery and delight to people around the world. This is Casio's way of building an even more prosperous, richly rewarding world.
Product specifications
Watch Information
Brand, Seller, or Collection Name | Casio |
---|---|
Model number | G2310R-1 |
Part Number | G2310R-1 |
Model Year | 2011 |
Item Shape | Round |
Dial window material type | Mineral |
Display Type | Digital |
Clasp | Buckle |
Case material | Stainless Steel |
Case diameter | 42 millimeters |
Case Thickness | 15 millimeters |
Band Material | Resin |
Band size | Men's Standard |
Band width | 22 millimeters |
Band Color | Black |
Dial color | Black |
Bezel material | Stainless Steel |
Bezel function | Stationary |
Calendar | Day-Date-Month |
Special features | alarm-feature, Chronograph, Shock resistant, Water Resistant, World time |
Item weight | 4.23 ounces |
Movement | Japanese Quartz |
Water resistant depth | 660 Feet |
Product Warranty | For warranty information about this product, please click here |
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 1 x 1 x 1 inches; 4.23 ounces
- Item model number : G2310R-1
- Department : unisex-adult
- Batteries : 1 Lithium Ion batteries required.
- Date First Available : March 15, 2005
- Manufacturer : Casio
- ASIN : B003304L1I
- Best Sellers Rank: #861,504 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry)
- #3,921 in Men's Wrist Watches
- Customer Reviews:
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Top Brand: Casio
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers appreciate the good quality, durability, and attractive appearance of the watch. They find it has a nice display and simple functions that perform well. Many of them consider it a great value for the price.
AI-generated from the text of customer reviews
Customers like the watch quality. They say it's a good price for a good quality watch, and a great watch for young men. The watches are described as tough and simple, getting the job done.
"G-Shock makes amazing watches. These automatically synchronize with the atomic clock, so always accurate...." Read more
"...Original Review: 8-24-14 This is a decent watch and it wasn't very expensive when I bought it...." Read more
"The Casio Men's G2310R-1 is a great watch to have if you do rough and tough work...." Read more
"...This a great watch from Casio - I’m a new convert to gshocks and this is my first piece...." Read more
Customers appreciate the watch's durability. They find it comfortable, rugged, and solar-powered. The watch is expected to last a long time and be in good condition when received. The glass is protected around the entire face, unlike other watches.
"...Good looking and yet nostalgic design. Very light, tough and water/shock resistant...." Read more
"...The watch however is Tough Solar and has all the other basic features found in all G-Shock watches...." Read more
"*UPDATE* 1-23-16: This has been a pretty solid watch over the past year but the band is definitely showing signs of wear from everyday use...." Read more
"...I notice that unlike that other watch, the glass face is protected all around it, instead of the glass sitting on top of the watch...." Read more
Customers like the watch's appearance. They find it functional, durable, and attractive. The steel bezel looks nice in real life, the G-Shock case is sturdy, and the color is good. However, some customers have issues with the watch band, finding it hard and uncomfortable.
"...Also, no worries about batteries dying because the watch is solar. Good looking and yet nostalgic design...." Read more
"...Both watches are good looking and good prices, but 1st. The Casio's band is very easy to wear and adjust, Nautica's is almost impossible to adjust...." Read more
"...I agree with Greg that this watch is extremely attractive and functional. Mine is the G2310R-1 which has Tough Solar, but lacks Multi Band 6...." Read more
"This is one of the best looking G-Shock watches that I've owned. Stylish and Functional, more for everyday wear...." Read more
Customers appreciate the watch's functionality. They find it has simple yet useful features, like solar power and backlight. The watch performs well in various settings, including swimming and showering. It is easy to read and has no battery issues.
"...I agree with Greg that this watch is extremely attractive and functional. Mine is the G2310R-1 which has Tough Solar, but lacks Multi Band 6...." Read more
"...Stylish and Functional, more for everyday wear. I have no problems wearing this for more formal occasions...." Read more
"...night & as I discovered it is not only easier to read, but it is full of features & almost as light as my analog titanium Seiko...." Read more
"...1 year update: Everything the watch does, it still does wonderfully except charging. It will not charge past 50%...." Read more
Customers appreciate the watch's value for money. They find it affordable, with a good build quality and nice contrast between the black silicone/plastic case and strap. The dial is less busy than other G-Shock watches.
"...Both watches are good looking and good prices, but 1st. The Casio's band is very easy to wear and adjust, Nautica's is almost impossible to adjust...." Read more
"...Nice G-Shock and it’s affordable. This watch will not disappoint. I’m very pleased with my purchase." Read more
"...I have no problems wearing this for more formal occasions. It is less "busy" on the front dial than other G-Shock watches and doesn't have..." Read more
"...This is a good value at retail, and even better if you get it on sale. The movement is still Japanese, not Chinese as on so many more watches today." Read more
Customers appreciate the watch's solar power. They find it convenient to use in sunny areas, as it charges the battery automatically. The backlight is also appreciated, and the watch has power-saving features that the previous model did not have. Overall, customers are pleased with the watch's solar functionality and its green design.
"...Also, no worries about batteries dying because the watch is solar. Good looking and yet nostalgic design...." Read more
"...N is with needles, to me is very hard to read. The C watch is with solar power, I like it very much, especially I live in Las Vegas, plenty..." Read more
"...Also, this one has power saving features the other solar did not, and supposedly runs 11 months straight on a full charge..." Read more
"...I didn't ever a leak in this watch. The best part is its solar power technology in this watch...." Read more
Customers appreciate the watch's battery life. They find it solar-powered, so it never runs out of battery. The watch turns off automatically when there is no activity or sunlight.
"...Also, no worries about batteries dying because the watch is solar. Good looking and yet nostalgic design...." Read more
"...NO PROBLEMS with the solar battery as the watch holds a full charge...." Read more
"...The watch was also about 40 seconds slow when I first got it. It was easy to fix and to set the correct time while setting my location as well...." Read more
"...features the other solar did not, and supposedly runs 11 months straight on a full charge (like if it is in a drawer for months at a time), so I do..." Read more
Customers have mixed opinions about the watch size. Some find it fits their wrists well, with a bit of chunkiness but not too big. Others say it's too small, the strap is a little small, and the face is too small for a sports watch.
"...Fits fine. If I put it in the 5th hole in the loop, it leaves an indented mark all the way around my wrist...." Read more
"...'s band is very easy to wear and adjust, Nautica's is almost impossible to adjust. 2nd. The C's user's manual is easy to read and into details...." Read more
"...in 48 cities around the world, stopwatch, bright back light, & smaller profile, to mention a few...." Read more
"...The only problem is that the band is too small. This watch seems much thicker than 11mm- it sits off my wrist about an inch...." Read more
Reviews with images

Great piece of engineering !
Top reviews from the United States
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- Reviewed in the United States on September 10, 2022G-Shock makes amazing watches. These automatically synchronize with the atomic clock, so always accurate. Also, no worries about batteries dying because the watch is solar. Good looking and yet nostalgic design. Very light, tough and water/shock resistant.
Unfortunately, my eyes are at the point of needing reading glasses. That makes glancing at my watch a chore. I'm definitely keeping these as a part of my watch collection, but Timex Expedition, Armatron and Casio Pro Trek will remain my daily work watch choices. They are just much easier to read, numbers are at least twice larger on the dials.
- Reviewed in the United States on January 17, 2014Basically I don't believe there is anything perfect, I'd like to give this watch 4.75 stars, but I don't know how to do it. This is a very good watch, especially right after I purchased and returned a NAUTICA Men's N11605G, there are very good comparison points between each other. Both watches are good looking and good prices, but 1st. The Casio's band is very easy to wear and adjust, Nautica's is almost impossible to adjust. 2nd. The C's user's manual is easy to read and into details. The N's is very user unfriendly. 3rd. All C's functions are easy to set, but N's, since the manual is hard to follow, and "set the day" function is not able to set. 4th. The C is a digital watch, all with numbers, easy to read for seniors, such as I am. N is with needles, to me is very hard to read. The C watch is with solar power, I like it very much, especially I live in Las Vegas, plenty sunshine feeds the watch with full power always.
- Reviewed in the United States on October 10, 2024I’ve heard it said from Greg Anderson, YouTube’s Good Timekeeping Show that the G2310 is one of G-Shock’s most underrated models. I agree with Greg that this watch is extremely attractive and functional. Mine is the G2310R-1 which has Tough Solar, but lacks Multi Band 6. Not having the MB6 feature isn’t a huge deal to me since I live in Hawaii and I’m too far away to receive the Multi Band Signal. The watch however is Tough Solar and has all the other basic features found in all G-Shock watches. I got a great deal on this watch because of my Amazon store credit and it’s another worthy Casio G-Shock to add to my collection. I plan on replacing the resin strap on this with a metal bracelet which can be purchased for $25.00 from the NY Watch Store. I’d prefer a genuine Combi Bracelet from Casio, but they are pricey and would cost me more than what I paid for the watch itself. Ali express sells cheap knockoff versions of the Combi Bracelets, but from reviews I’ve read it’s best to avoid them. If you’re not into metal bracelets, but want to upgrade the strap, check out JayandKays on eBay or some of the NATO/Nylon offerings here on the zon. There are many options available to upgrading the stock straps on Casio watches. And if you’re really into modding your watch, check out the SKXMOD kits available from the SKX website. I modded 2 GA B2100 G-Shocks already and the results have been nothing short of stunning. Imagine purchasing a genuine Casioak G-Shock from Casio for $500.00 when you can purchase the resin watch, buy the SKXMOD for around $100.00 and build your own Casioak for $200.00 or less. The mods are sraightfoward and very simple to do. All the tools & parts you need are included with the kit. Happy G-Shock’n! :)
Digressing back to the 2310, it gets 5*****Stars from me. Nice G-Shock and it’s affordable. This watch will not disappoint. I’m very pleased with my purchase.
- Reviewed in the United States on October 12, 2015This is one of the best looking G-Shock watches that I've owned. Stylish and Functional, more for everyday wear. I have no problems wearing this for more formal occasions. It is less "busy" on the front dial than other G-Shock watches and doesn't have all the "needless" movement from the LCD readout as on other G-Shocks.
My last everyday watch was a Citizen solar analogue and was going strong after 7 years until it fell from the table on concrete. The crystal broke and the watch was not worth fixing. I have another Citizen solar watch about 8 years and still going strong so hopefully this solar G-Shock will last for a long time.
If you check YouTube, solar watches do need to swap out their “rechargeable battery” that looks like a battery if it fails to charge. Meanwhile I’ll just enjoy using as long as it runs.
The functions on this G-Shock are very straight forward and easy to learn especially if you had any type of G-Shock in the past. I love that the display is simple and straight forward.
I’ve had early G-Shocks in the past that I’ve used for scuba diving and contact sports. I never had any problems with them. I expect the same from this present G-Shock. The prices on Amazon are great! This G-Shock is a *KEEPER*!
__________Update June 9, 2021________________________________
**STILL GOING STRONG**
Going into the 6th year owning these watches. Yes, I bought more than one as I didn't count this G-Shock would be this strong(all my G-Shocks running perfectly). NO PROBLEMS with the solar battery as the watch holds a full charge. I've dropped it and bumped it on occasions, no scratches on the protected "rubber watch case and watchband. ZERO scratches on the bezel and dial." The LCD and backlight are very clear so it is easy to read the time both day and night. When I bought this watch I chose not to have 'Atomic Time Keeping' as it is just one more thing to go wrong. As this watch is only a few seconds fast per month, instead what I do during DST is set my watch 1 minute early than when it is ready to be switched to regular time or vice-versa. My watch is never off by more than 1 minute after 6 months. If necessary, I have worn this watch 24/7 in the hot desert sun, pouring rain, and swimming with no problems. I had one of the early G-Shock watches in the 1980s and was curious after 15+ years how strong the G-Shock can stand up to punishment. A few G-Shocks later, I don't feel as if I need to punish this watch for the sake of testing. I'll let Casio do the G-Shock testing, and I'll enjoy wearing the watch. Doing my own testing was only a waste of my own money, only to find the G-Shocks are more durable than 99+% of all other watches. The 1% are "G-Shock clones" in which I have no wish to pit the durability of the G-Shock that has already proven itself as solid and reliable to me in the past 30 years.
Top reviews from other countries
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JOSE LUIS ALVAREZReviewed in Mexico on April 14, 2024
5.0 out of 5 stars Buen reloj.
Me gustó mucho el reloj, su entrega fue justo en el tiempo programado.
- carlosReviewed in Canada on April 22, 2022
5.0 out of 5 stars Looks and Durability!
I have a G-shock Rangemaster which I absolutely love. I've been wearing it non-stop for close to 8 years - durable, great functions and serves its purpose. Because I've had such a good experience with G-shock products, I bought this time-piece as an entry level watch for my son. The aesthetic is not for everyone. I was soo glad when he opened the gift - he loved it! It looks good, size isn't overbearing, clean look and it's solar! We'll see how this holds up - no doubt it will last as long as mine. As for the price point, if he wants something different down the road, I've got me a another G-shock!! Thank you for the great products Casio.
A loyal customer for life!
- Yazan AnayaReviewed in the United Arab Emirates on January 1, 2024
5.0 out of 5 stars Another great g-shock
This watch looks amazing especially with stainless steel bezel, unlike most other g-shocks, this one can fit most clothes and it's more versatile
Solar battery Is a must for me and this one didn't disappoint , I received the watch on (mid) so I kept it outside under the sun light directly to charge it, it will take a while to get to (high) but once it's there you are good to go, mine never dropped down from high even if it's at home most of the time
The band is really short, i feel like this watch was made for small wrists , so keep that in mind if you have over 7.5 in inch wrist
- BodieReviewed in the United Kingdom on October 10, 2023
5.0 out of 5 stars Typical G Shock
Watch is as expected, usual casio quality. What I was disappointed about is that the watch isnt new, everything was squeezed into the tin & there was no bag around the watch, not as theyre packaged from the factory/dealer. If you are going to re-sell Amazon at least tell people its second hand!!
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Marco NobelliReviewed in Italy on August 28, 2018
5.0 out of 5 stars Eccezionale
Semplicemente fantastico.
Ottimo orologio, molto bello al polso. Ottimo anche come regalo, è un orologio resistente che mantiene fede al marchio g-shock