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Casio G-Shock GWN1000B Master of G Series Quality Watch - Black / One Size

  • Based on 111 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
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Arrives Friday, Oct 9
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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.

Package Dimensions ‏ : ‎ 5.75 x 4.88 x 3.7 inches; 3.56 ounces


Item model number ‏ : ‎ GWN-1000B-1BJF


Department ‏ : ‎ mens


Batteries ‏ : ‎ 1 CR123A batteries required.


Date First Available ‏ : ‎ June 4, 2014


Manufacturer ‏ : ‎ Casio


Product Warranty: For warranty information about this product, please click here


Best Sellers Rank: #1,065,034 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #4,567 in Men's Wrist Watches


#4,567 in Men's Wrist Watches:


Display: Analog-Digital


Watch Movement Type: Japanese Quartz


Additional Features: Altimeter, Barometer, Compass


Power Source: Solar Powered


Strap Type: Two Piece Strap


Water Resistance Depth: 200 meters


Sport Type: Walking


Clasp Type: Tang Buckle


Water Resistance Level: Water Resistant


Embellishment Feature: Crystal


Closure Type: Buckle


Style Name: Sport


Shape: Round


Band Color: Black


Dial Color: Black


Theme: Sports


Pattern: Geometric


Face Style: California


Bezel Color: Black


Brand Name: G-Shock


Model Name: MASTER OF G - SEA GULFMASTER


Model Number: GWN-1000B-1BJF


Series Number: 1000


Item Weight: 101 g


Global Trade Identification Number: 62


Model Series: Master of G


Manufacturer: Casio


Number of Items: 1


Age Range Description: Adult


Manufacturer Part Number: GWN-1000B-1BJF


Band Material Type: Resin


Case Material Type: Resin


Crystal: Mineral Glass


Case Diameter: 33 millimeters


Band Width: 10 millimeters


Case Thickness: 16.2 millimeters


Bands: 1


Warranty Type: Limited Warranty or Full Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Incredible
Thank you for the watch. It’s really nice and appreciate that’s it’s a Japanese H stamped in the back. Holds value made in the headquarters of the premium factory in Tokyo.
Reviewed in the United States on July 10, 2026 by Manuel

  • Great Looking Watch!
Great looking watch! Have been wearing it almost daily since I received it.
Reviewed in the United States on September 14, 2025 by Salvador Lopez

  • this is the best watch ever made by Casio
Perhaps, this is the best watch ever made by Casio. Amazing set of instrumentation (temp, baro, alt, compass, tide, etc.) I calibrated mine to be more accurate (it's very easy to do). Tide dial comes extremely handy, as I bought it for my kayaking days. Now I wear it almost daily. More features than I will ever need, but handy to have. Not too thrilled about the wrist band: it does the job and is fairly comfortable, but doesn't match the fantastic look of the watch, not as well-designed. LED lighting is not too bright, but I didn't get this one to be used as a flash light anyways. Officially it is "water resistant", but in reality it is completely water proof, and is good to go down for snorkeling and even some scuba diving. Manual is simple to follow, and functions are very easy to navigate. Little kinks of this watch (hands move away, and other) are pretty neat. Final word: I love it and glad I bought it! ... show more
Reviewed in the United States on January 18, 2015 by Sergei

  • it is a nice watch with many features
All in all, it is a nice watch with many features. There are just a few things that make me wonder. First, the barometric change indicator always shows sudden fall in pressure (the small yellow arrow down is always highlighted), even though the pressure has changed one day from 950hPa to 1100hPa. Second, the specification says that the watch has a triple sensor. In fact, the altimeter is based on barometer, so it seems the watch actually has two sensors. Finally, the temperature sensor is a bit slow. I gave it a test in the street when it was -3. The watch dropped to about +2-3 degrees and did not want to go less. ... show more
Reviewed in the United States on February 17, 2015 by NeoSer

  • Solar. Atomic clock accuracy.
Pros: Easy to program. Not bad delivery. Received in 2weeks from Japan to east coast of USA. Every function you’ll probably ever need. Big watch but not heavy. Good for the price. Cons: no English directions. Use YouTube. Warranty information is vague. Used to be, amazon covered these types of situations but don’t see that written anywhere. Decent backlight. Could be a little brighter. Not as bright as a mudmaster. ... show more
Reviewed in the United States on December 26, 2024 by Frank

  • They are great!
The watch was brand new and came in the box just like I would have bought it in Japan. It came like 20 days earlier which was a fantastic thing since I was so anxious to get it and happy I didnt have to wait longer. All in all I am more than happy with this vendor. They show professionalism, respect, and they deliver fast! ... show more
Reviewed in the United States on November 27, 2025 by christian morgado

  • Plan to replace it in 9 mos
Rechargeable battery worn out after a year. Unacceptable.
Reviewed in the United States on November 15, 2025 by P

  • CASIO GULFMASTER.
Reloj de gran calidad, me encanta la esfera azul, iluminación extraordinaria, poco peso, no muy grande, se siente cómodo en la muñeca, HECHO EN JAPÓN, sensor triple, multibanda 6, carga solar, empaque impecable, rápida entrega, un auténtico GULFMASTER.
Reviewed in the United States on September 12, 2025 by Alejandro P.

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