Casio Men's GW7900B-1 G-Shock Black Solar Sport Watch

4.3 out of 5 stars 900 customer reviews
| 70 answered questions

List Price: $150.00
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  • Made in USA or Imported
  • Solar-powered sport watch featuring atomic time keeping, world time in 48 cities, and EL backlight
  • Features 1/100-second stopwatch, daily alarm with snooze, 12- and 24-hour formats, tide/moon graph, 31 time zones, and day/date/month calendars
  • 50 mm resin case with mineral dial window
  • Japanese quartz movement with digital display
  • Resin band with buckle closure
  • Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving.

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Product Alert: Casio Tough Solar watches are battery powered. The battery is recharged by a solar panel built into the face of the watch. Depending on the model, a Casio Tough Solar watch can stay fully functional anywhere from 5-23 months without exposure to any light. Casio Tough Solar watches can be recharged with any type of light, but recharging times will vary according to the light-source.
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Product Alert: Casio Tough Solar watches are battery powered. The battery is recharged by a solar panel built into the face of the watch. Depending on the model, a Casio Tough Solar watch can stay fully functional anywhere from 5-23 months without exposure to any light. Casio Tough Solar watches can be recharged with any type of light, but recharging times will vary according to the light-source.

Product Description

With the multifunctional Casio Men's G-Shock Solar Atomic Black Digital Sport Watch, you'll finally be able to mix business with a little athletic pleasure. The case and bezel are both made of black Resin, tailoring to your more sophisticated side by offering a sleek look and smooth feel. Four large silver screws accent the top and bottom of the bezel, which displays blocky white words depicting the four button functions. The dial hosts five subdials depicting time, date, and even tide charts for the boating enthusiast. Easy-push buttons on the case allow you to quickly go through your settings and work the handy stopwatch feature, while a soft EL backlight provides you with access to the time, regardless of where you and your watch are. The wide band also consists of black Resin, closing with a silver buckle for a custom fit. This sporty timepiece is water resistant up to 660 feet (200 meters), relies on Japanese quartz movement, and boasts Casino's shock-resistant technology.

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.

  • Product Dimensions: 4 x 3.8 x 4 inches
  • Shipping Weight: 8.8 ounces (View shipping rates and policies)
  • ASIN: B00309HQPK
  • Item model number: GW7900B-1
  • Date first available at Amazon.com: August 8, 2005
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Amazon Best Sellers Rank: #83 in Watches (See Top 100 in Watches)
    • Average Customer Review:
      4.3 out of 5 stars 900 customer reviews

    Product Specifications

    Watch Information
    Brand, Seller, or Collection Name Casio
    Model number GW7900B-1
    Part Number GW7900B-1
    Model Year 2011
    Item Shape Round
    Dial window material type Mineral
    Display Type Digital
    Clasp Buckle
    Metal stamp None
    Case material Resin
    Case diameter 50 millimeters
    Case Thickness 17.7 millimeters
    Band Material Resin
    Band length Men's Standard
    Band width 29 millimeters
    Band Color Black
    Dial color Black
    Bezel material Resin
    Bezel function Stationary
    Calendar Day, date, and month
    Special features Stop watch, Shock resistant, Timer, World Time
    Movement Japanese Quartz
    Water resistant depth 660 Feet

    Customer Questions & Answers

    Customer Reviews

    Top Customer Reviews

    I have had the GW7900B for a year and a few months now, and I am very happy with it. The watch is all black, and the digital face is inverted so that it is black with light gray for the numbers. That means the watch is pretty much all black, which is a very nice look. The inverted digital face does make it a little tough to read in low light situations, but the G button just below the watch face lights up the time, date and other information with the same kind of indiglo effect that I have had for years with Timex Ironman watches. The lighting effect makes this watch easy to read at any time. You also have the option to have the lighting effect happen with the turn of you wrist so you can see the watch information without having to push a button. This is a large watch. The body of the watch is almost 3/4 of an inch thick, which is the thickest watch I have come across. While it is a large watch, it is very light, because most of the body is plastic. The face of the watch is scratch resistant, and it is recessed into the watch about a quarter of an inch, so it is well protected.

    The watch is loaded with features. 1) The time is set every night through radio signals from an atomic clock. Every night at a few minutes after midnight the watch will try to update the time from the atomic clock. If it is unable to update the time, then it will try again every hour through the night until it gets an update. This makes the watch very accurate. It has been off by less than half a second from any of my other atomic clocks or the atomic time that you can get over the internet. This will be the most precise watch you will probably ever own. 2) The battery on the watch is recharged by solar panels in the watch face.
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    7 Comments 295 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Verified Purchase
    I'm an avid collector of automatic time pieces, especially diver watches but always worry about wearing them and exposing them to the hazards of my job. So I began the hunt for a "realistic" everyday watch that could handle being exposed to knocks, chemicals, and impacts without breaking the bank. Enter the G-Shock line of watches! I'm going to make this a simple review:

    pros: super lightweight that fits my 7" wrist perfectly (the wingy things actually help!)
    awesome looks (negative display is not that hard to read and EL function set to 1 second is perfect for quick reads.
    price!
    200M water resistance, solar, atomic function is awesome, countdown timer, stopwatch, alarms, and UDT/world time.
    extensive manual (must read!).

    cons: looks like a bullfrog is sitting on your wrist at certain angles (yeah, some poster over at WUS commented about this and the SOB was right (lol). Oh well, I have blacked out bezel screws from PACPARTS and an extra bezel coming so I can "stealth" it out.

    All-in-all I like her so far, only time will tell if she can live up to the G-Shock name.
    3 Comments 43 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Verified Purchase
    Me to larger-than-life Navy SEAL: "hey we wear the same watch!"

    Him: "yeah yours is better though, it's got these raised screw heads."

    Me: "oh those are just for show, people on Amazon even complain about them."

    Him: "no... see, if you wear it on the inside of your wrist like me, it's a great weapon when you attack the face. I learned that while boxing in Brazil. Glancing blows scratch near the eye and blind the opponent."

    Me: "you obviously shop differently than I do."
    10 Comments 324 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Verified Purchase
    I've owned a Tag for over a decade, and recently started expanding my collection (which includes some nice automatics). All this means nothing other than to tell you my frame of reference in getting this G-shock. I did a lot of research and narrowed it down to either this one or the GD100-1B. I went with the GW7900B-1 and it is just fantastic.

    Many of the other reviews will give you the specs, so I'll just touch on points that worried me that didn't pan out. First, the size: It's a large watch but not stupidly so. I've seen some Sunntos that look like a pie plate. Even on my medium-sized wrist this watch looks good, not overpowering. And I have to say it's THE most comfortable watch I own. The little wings on the back are a work of engineering genius.

    I've had zero issue with the four screws. I think they look great. I suspect that some people abuse this watch and the screw issue (coming out) has been overblown.

    Readability: I thought the negative (mostly black) display would be hard to read. Not the case. And it looks sharp. Great backlight, too.

    Finally, I was a little worried about the solar power, b/c I don't wear mine every day. But I have yet to have it come off of the highest level of charge.

    In short, I am a HUGE fan of this G-shock. I purchased this intending to buy another one to add to my rotation, but I like this watch so much I can't imagine not wearing it. Highly recommend!

    UPDATE: I've owned this G-Shock for about 6 months now and has absolutely become my go-to watch. Super comfortable and useful. I don't baby it- I'll wear it to do anything, and it looks as good as the day I got it. I've never had the solar power indicator fall under the "High" mark and the atomic clock syncs every night without issue.
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    3 Comments 56 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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