Casio Men's GW7900B Classic Solar Atomic G-Shock Watch

Very good

This watch looks great - it's 'stealth' black look is mean, and a real fashion statement. As is the size. A 50mm width, and 15mm height ensures it will be noticed. However, the display is a double edged sword. The negative display keeps within the stealth mode, BUT it is impossible to read in low light conditions without the aid of the EL light. By low light, I mean indoors under domestic conditions (not bright office light), or outdoor in winter. Sunshine really pops the display into life. The functionality is superb, the atomic function ensures 'to the second' accuracy, and being solar means the watch will remain intact without costly battery replacements, and new gaskets to retain it's waterproof qualities. The resin strap is of good quality, and is supremely comfortable due in part to the 'wings' at either side of the lugs which hug your wrist. I have had mine for some months now, and have 'modded' it slightly by replacing the chrome buckle with a black one, removing the white writing around the bezel, and replacing the silver bezel rivets with black ones, and painting the 'G' on the light button black, all just to highlight the stealthiness of the design. I do love it, and it is almost a great watch, apart from the fact that you can't tell the time in poor light!!

I’ve had this for the past few years and it’s great watch in every way except two things are a pain. The negative display looks cool but it’s really hard to read most of the time and you spend more time moving your wrist to catch the right angle to read it, or have to illuminate it. The solar power indicator and hourly time signal are tooooo small to see half the time. Would I recommend buying one? No, get the normal version.

Absolut Top

I bought this watch to replace a Timex Ironman that died after a few years of service. I liked the Timex because of its low price, huge display, and very easy to use all of the watch functions. I've had the Casio GW7900B-1 watch for about a month now and I don't miss my old Timex one bit. There are several comments about the inverse display being hard to read, but I find it easy to read in any lighting conditions. I would say that you have to use the backlight a little more than you would on a traditional display (for example a little earlier at dusk), but that's just a new habit to get used to. With the backlight on you can read it fine under low light conditions. The backlight actually seems brighter than what I had on my Timex. Display of numbers is not as big as on the Timex (nothing out there really is), but this watch shows more information and the display is big enough that I don't have any problems reading it. It is very easy and intuitive to use all of the features on the watch. Maybe not quite as simple as the Timex, but pretty darn close, and you have more features like moon and tide info on this one to learn how to use. Read the user's manual one time and you'll understand how to use everything. Obviously the price of this watch is more than the Timex, but this watch is built like a tank and I think it will last forever. I also think it is more attractive than the Timex. I wear it to work (office job) and people have told me "nice looking watch." It is a large watch, but looks good and is comfortable to wear. The watch battery power indicator has been on full ever since I received it. I work in an office all day under fluorescent lights and am outside an hour or two in the evenings, plus outside more on weekends. That seems to be enough to keep it fully charged without doing anything special. Time sync with atomic clock signal has worked perfectly every night and even automatically adjusted for daylight savings time. I leave the watch sitting on my dresser when I go to bed and it syncs without any special effort required. I live in Colorado, so I am close to the source of the atomic clock signal in Ft. Collins. As others have mentioned, the screws on the front face are there just for looks. You can move them around with your fingers, but it doesn't seem like they are going to fall out or anything. Overall, this is a great watch and I am looking forward to having it for many years.

I purchased this watch last summer and after more than 6 months of using it, I must say that this is an exceptional watch. What attracted me to this watch was that it is solar powered and it automatically updates the time with the atomic clock. With these two convenient features, you will never have to replace the battery or manually set the time ever again! Overall, I'm extremely impressed with this watch. It's not too heavy, is very comfortable to wear, easy to use and maintains a tactical yet stylish look suitable for everyday wear. As with newer G-Shock watches, this model features the attached "wing" apertures that allows for a more stable and comfortable fit on your wrist which is really handy when wearing larger watches. The moon and tide function is a neat feature but I don't use enough of either to comment on them. This watch also has the typical G-Shock watch functions such as stopwatch, multiple alarms, 48 city world time, and timer. Just a quick note on the atomic timekeeping: This watch updates the time every night at midnight and if unsuccessful, it will retry 5 more times per night; once an hour between midnight and 5am. If the watch remains unsuccessful, you may attempt to connect to the atomic signal manually at any time or set the time manually like a traditional watch. For North America, the atomic clock is located in Colorado, United States and this signal will also cover Canada. Simply set your time zone and you will never have to worry about setting the time ever again. When updating the time, it's best to sync your watch late in the evening when there are fewer radio signals and electronic interferences in the air. For best results, the manual suggests that you place the watch near a window with the watch pointed diagonally to the sky. When the watch is updating time, the screen will display the signal strength: L1 (low), L2 (medium) or L3 (high). I've noticed that updating the time can take anywhere between 4 to 10 minutes, even on L3. On average, my watch completes updating the time within 4-6 minutes of synchronization. (NOTE: If you find it difficult for your watch to sync the time every night and you have another wrist watch that also updates the time via the atomic clock, I find it very effective to place them side by side at night as this will bond the watches for a stronger signal reception. I've had my Casio atomic watches go months without updating the time but every time I place them next to each other at night, they synchronize on the first attempt. This never fails!) On a downside, the numbers in the LCD display does not look as white as it does in the stock photo. The numbers actually appears darker than what you see in the photo. This particular model is using "module 3200" which means it has light numbers on a black background and this makes the display harder to see in low light situations. Also, the EL backlight only illuminates the numbers and not the entire display. Module 3200 is ideal for viewing outdoors during the day and not at night. If you get this watch, I suggest you get the module 3193 (dark numbers on light background) as it displays the numbers more clearly in both day and night-time situations. Charging the battery is also extremely easy to do. Simply wear the watch in the sunlight or place it facing a bright source of light such as a desk lamp or window with ample lighting and the watch will recharge the battery. A full charge lasts about 9 months. To preserve battery life, this watch also has a power save feature where the watch automatically turns off the display if the watch is not used for an extended period of time. Overall, this is an impressive watch and if you're only in the market for 1 digital watch for everyday wear, this could be it. Having a solar powered battery and the watch update the time automatically means that you will never have to worry about it ever again. Pair this up with G-Shock's tough build quality and you have a watch for life.

orologio con moltissime funzioni,leggerissimo,anche se con scarsa luce si vede poco il display,ci fi fa l'abitudine.indistruttibile,unico difetto:non usatelo in spiaggia, il vetro minerale ,che non e'affatto antigraffio ,con la sabbia si graffia!!!

G-SHOCKなので、ソーラー、電波時計等基本性能は最高❗️タイドグラフは、細かい地域設定ができないので、正確性を求めるには、上潮時刻の再設定が必要となるのは残念。でも、機能、デザイン、コストパフォーマンス的に素晴らしい時計です。