Casio

Casio Men's GW2500B-1A G-Shock G-Aviator Chronograph Sport Watch

• Tough solar power, multi-band 6 atomic timekeeping, shock resistant
• Full auto LED back light, luminous hands and markers, world time
• Daily alarm with snooze, chronograph, 12/24 hr formats
• Water resistant up to 660 feet (200 M)

Product Description

The Casio Story

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.

In developing its own wristwatches Casio began with the basic question, ""What is a wristwatch?"" Rather than simply making a digital version of the conventional mechanical watch, we thought that the ideal wristwatch should be something that shows all facets of time in a consistent way. Based on this, Casio was able to create a watch that displayed the precise time including the second, minute, hour, day, and month — not to mention a.m. or p.m., and the day of the week. It was the first watch in the world with a digital automatic calendar function that eliminated the need to reset the calendar due the variation in month length. Rather than using a conventional watch face and hands, a digital liquid crystal display was adopted to better show all the information. This culminated in the 1974 launch of the CASIOTRON, the world’s first digital watch with automatic calendar. The CASIOTRON won acclaim as a groundbreaking product that represented a complete departure from the conventional wristwatch.

Casio transformed the concept of the watch — from a mere timepiece to an information device for the wrist — and undertook product planning based on this innovative idea. We developed not only time functions such as global time zone watches, but also other radical new functions using Casio’s own digital technology, including calculator and dictionary functions, as well as a phonebook feature based on memory technology, and even a thermometer function using a built-in sensor. The memory-function watches became our DATA BANK product series, while the sensor watches developed into two unique Casio product lines of today: the Pathfinder series displaying altitude, atmospheric pressure, and compass readings.

In 1983, Casio launched the shock-resistant G-SHOCK watch. This product shattered the notion that a watch is a fragile piece of jewelry that needs to be handled with care, and was the result of Casio engineers taking on the challenge of creating the world’s toughest watch. Using a triple-protection design for the parts, module, and case, the G-SHOCK offered a radical new type of watch that was unaffected by strong impacts or shaking. Its practicality was immediately recognized, and its unique look, which embodied its functionality, became wildly popular, resulting in explosive sales in the early 1990s. The G-SHOCK soon adopted various new sensors, solar-powered radio-controlled technology (described below), and new materials for even better durability. By always employing the latest technology, and continuing to transcend conventional thinking about the watch, the G-SHOCK brand has become Casio’s flagship timepiece product.

Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, and the radio-controlled function means users never have to reset the time. In particular, the radio-controlled function represents a revolution in time-keeping technology similar to the impact created when mechanical watches gave way to quartz technology. Through the further development of high radio-wave sensitivity, miniaturization, and improved energy efficiency, Casio continues to produce a whole range of radio-controlled models.

Product Details

• Shipping Weight: 8.8 ounces
• 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.
• ASIN: B00284AD9Y
• Item model number: GW2500B-1A
• Average Customer Review: 4.4 out of 5 stars  See all reviews (19 customer reviews)
• Amazon Best Sellers Rank: #14,010 in Watches (See Top 100 in Watches)

Customer Reviews

Most Helpful Customer Reviews

25 of 30 people found the following review helpful:

4.0 out of 5 stars good, but, September 5, 2009

By 

Jesse Cervantes "Jesse" (Fl) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Casio Men's GW2500B-1A G-Shock G-Aviator Chronograph Sport Watch (Watch)

As a Pilot and watch enthusiast/collector I can tell you this is a very good aviation watch, with many features that are very useful, all in a very attractive design, but it needs some minor improvements
1-they should incorporate a back light for the LCD, right now it doesn't have any kind of light for the LCD, my suggestion a cool red for the LCD's so that we can see whatever we select on those displays, as the light that it comes with at the 6 o'clock position when illuminates it actually blinds those LCD's, the dial light should remain but they should replace that light for a dial indiglo and make it "softer" and more adequate, may be of a cool blue or cool green color, to contrast with a future LCD back light without blinding the LCD as it does now the light that it has now is my biggest complaint and then again I'm afraid Timex has a patten on the indiglo
2-the countdown timer should be 24 hrs and not just limited to 60 min, I'm disappointed about the 60 min countdown timer limitation on the current model, many casio cheaper model watches come with a 24 Hr countdown, I don't see why they would limit this one to just 60 min
3-add more cities, my suggestion at least 100 cities just like you have on one of the data bank models, although the ones that are programed now are adequate
4-make the numbers displayed on the left lower LCD as big as the ones displayed on the lower right LCD which displays the seconds
5-the alarm sound should be of higher decibels (louder, a lot louder) since this watch is supposed to be used in high noise environments like airplanes, and noisy airports
6-all of these alarms should be interchangeable between local and UTC or any other city selected on world time without having to change the home town time or T1 as it is right now
7-It would also be nice if they incorporate a data bank even if it''s just a 30 page, that would be fantastic, but I''m not sure if this is wishful thinking on my part, and if it''s too much technology to pack in a little watch
8-the right analog dial should only move in whole numbers since you can always see the minutes on the bigger hands of the watch, sometimes it's confusing especially in low light conditions when it's in between times, ( I.E 8:45 ) and I would also opt for a more classical lay out of the times on the 3 o'clock dial with 12,3,6,9 instead of 12,4,8 as it is right now, I think it would be more intuitive and easier to read but that just may be my personal preference and it's not a big deal
Over all it''s a great watch for the money, but I''d like to see some of those design improvements in the near future and I think with those this model would sale even more than what it probably does right now. would I recommend this watch, Yes

9 of 9 people found the following review helpful:

5.0 out of 5 stars Superb watch for $$, December 31, 2009

By 

Zuludigital - See all my reviews

This review is from: Casio Men's GW2500B-1A G-Shock G-Aviator Chronograph Sport Watch (Watch)

I bought the GW2500B-1A to replace the Swiss Tissot T-Touch 3000 (a more expensive timepiece). Since the US has changed it's DST, a lot of watches with world time functions, and with preset DST, are more than useless - they're confusing/frustrating. This problem alone made me look at watches that have Atomic Timekeeping. I was apprehensive about how well this time sync would work (I returned a clock because it could not sync at my house). I am happy to report the GW2500B-1A syncs every night while I sleep with the watch on my wrist - no holding it up to a window in Contra Costa or San Jose CA. The coolest feature about this watch is, like the Tissot, it will swap the main dial hands from you home time to the city you select as your 2d time zone - you see the main hands move to the correct time from say NYC to Madrid (and just do one button press to swap back to NYC when you return). Or you can have the small-right-dial's hand show the hour in Madrid while you keep NYC's time on the main dial and have the digital screens show DAY of Week, DATE and SECONDS. This is really nice for me as I keep China's timezone on the right when I'm working. The LCD can be seen clearly for me (I hear is is a problem for the other colored models in this series). The night light works great for looking at all the analog dials - it could be better for the LCD. Finally I have become a frequent user of timers and alarms on wristwatches for cooking and travel and these features work well on this watch.

9 of 9 people found the following review helpful:

4.0 out of 5 stars Many Features - Great Value, September 8, 2009

By 

Pete D. "Rensport805" (Ventura, CA United States) - See all my reviews

Amazon Verified Purchase

This review is from: Casio Men's GW2500B-1A G-Shock G-Aviator Chronograph Sport Watch (Watch)

After a battery powered watch stopped working I decided to find an alternative and this solar powered watch caught my attention. I also have a kinetic self-charging watch which is nice but is heavy. This G-Shock watch is light and has several useful features. At first I noticed was there's no crown, but rather 4 buttons for set-up and adjust the watch. With that said there's a little bit of a learning curve to get the full use out of the watch. Also, the watch is bulky & thicker than I anticipated - fortunately it's fairly light. I've had the watch for almost a month and have been happy with it.

Suggestion: Rather than struggling with the tiny owners manual, visit the Casio web site and check out the online owners manual [.pdf file], which is much easier to read.

Pros: Light attractive design. Multiple features including solar recharging and auto-calibration. Great value for the price.

Cons: Poor night illumination, the time can be seen, but the LCD displays are hard to view, [should be back-lit].
The upper LCD has both large and very small acronyms - they shouldn't expect the user to have a magnifying glass handy to view the small acronyms.

Would I recommend this watch: Yes