Casio G-Shock Mens Analogue-Digital Watch

Casio G-Shock Mens Analogue-Digital Watch


  • Water Resistant: 200 Metres Water Resistant
  • Auto Calendar: Once set, the automatic calendar always displays the correct date
  • Battery Life: Approximately 7 months on full charge (without further exposure to light)
  • Dimensions: 55.1 x 52.5 x 16.7mm
  • Mineral Glass: Hard glass resists scratching
  • Total Weight: 72g

Casio G-Shock GAW-100B Men Watch

Big and Bold. The GAW-100 is a classic oversize model packed with features. G-Shock’s famous Shock Resistant technology is merged with Tough Solar Powered operation and Radio Controlled accuracy creating a strikingly stylish watch for reliable, perfect timing.

Dimensions: 5.25 x 1.67 x 5.51 cm; 76 Grams
Model: GAW-100B-1AER
Batteries Included: 1 Lithium Metal batteries required. (included)
Manufacture: G-SHOCK
Department: Men's
Dimensions: 5.25 x 1.67 x 5.51 cm; 76 Grams

15 Responses

  1. Anonymous says:

     United Kingdom

    This G Shock is an absolute bargain solar powered shock resistant 200 metres waterproof and more add to the fact it looks fantastic and you have a watch that will out perform most and outlast many no winding no battery change no fuss just perfection.

  2. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersThis is my first G-Shock
    Not my first Casio
    I’ve had 3 wave ceptor casios because I love how accurate they are so on seeing this gorgeous G-Shock with similar traits I thought I’d give it a whirl.
    First of all the comfort is outstanding,
    Time keeping is bang on to the second.
    The look and layout is just perfect and easy to read and that’s saying something at my age.
    The back light is nice and bright, everything is so easy to see.
    The set up is simple, I already knew how to do it but as luck would have it mine was set up straight out the box.
    I only had to change the location to LON as I live in the UK. The next morning it received the signal and the watch was set perfect.
    Tip:- everything you need to know is on YouTube, step by step set up.

  3. Anonymous says:

     United Kingdom

    Although this is a large watch, I was surprised how comfortable it feels. Mine arrived very quickly, and I didn’t have any problems setting it up as it came fully set up and ready to go! I have been very pleased with the watch, and being radio controlled and solar powered I think it is excellent value for money.

  4. PaulaGrantham says:

     United Kingdom

    Great watch at a good price, does all that I need it to do. Only criticism (and stopped it getting a 5), is the alarm is too quiet, unless you are a really light sleeper, there is no chance of it waking up anything or anybody.

  5. Quentyn Kennemer says:

     United Kingdom

    Golden Review Award: 4 From Our UsersI have written about these watches before and nothing has changed. I do have a couple of very expensive other brand watches but for daily use these are unbeatable.
    This one arrived within 24 hours and after setting my home city, doing a manual radio alignment and synchronising the hands with the digital time, it was up and running, to my liking, within 10 mins.
    It corrects itself every morning between 1 and 2 a.m. and when travelling abroad, all you have to do is select a new home city, 2 button presses, and it motors round to you new destination time. It automatically switches between GMT and BST.
    This model is a bit larger than the previous one but as a result the back lighting is that much better and all the face information can be seen after dark.
    I really can’t fault these watches and “No” I do not work for Casio.

  6. CindiGNOgt says:

     United Kingdom

    This is the baseline timer for all my watches, omega, Brietling etc. It is much better than the versions with smaller buttons or negative trendy screens (sent both of them back), this ones are just right. The light function is fantastic (so much better than earlier ones) its solar power function is excellent, charges fully from daylight. It’s tough, waterproof and good for holidays, mountain biking etc as well as being the accurate timekeeper for my other watches. It feels a quality item and is appreciated by those with other famous name watches for its abilities. The standard LCD screens are easy to read (unlike the reverse ones) Really very satisfied. On the downside.. the timer is only one hour, and alarm is too quiet to be particularly effective, but these are marginally useful devices these days. As a stylish hardy effective reliable unstoppable timepiece that has a rugged charm and character it can’t be beaten.

  7. VictorinaRoten says:

     United Kingdom

    Golden Review Award: 6 From Our UsersI’ve spent most of my 54 years fascinated with watches and timekeeping. I wear a watch 24 hours a day, no matter where I am, so it needs to be more rugged than me.
    For the last 15 years I’ve worn Omega Seamasters and been charmed by the romance of a purely mechanical movement with a beating heart, kept alive solely by movement.
    I’d occasionally dabble with other watches, only to relegate them to a drawer when they didn’t compete. For the last few years I’ve not even tried to replace my Omega, assuming it would take a Rolex the price of a car to do so.

    Roll on spring 2021, working from home, and four minutes late for an important Zoom meeting, all because I’d not factored in the effect hot weather has on my watch.

    I have radio controlled wall clocks around the house, why not a radio controlled (and solar) watch?
    I did some research, and found what I consider to be reasonably priced introduction to the world of G-Shock, a GAW-100B-1A2ER.
    I’m absolutely delighted, and can’t believe I’ve ignored the idea of a G-Shock for 38 years, possibly through snobbery.

    I now sit in the sun, knowing full well that my watch is accurate, leaving the patio thirty seconds before each meeting, safe in the knowledge I won’t be late.
    Great watch!

  8. rokh says:

     United Kingdom

    Reviewed March 2021:

    Bought this watch to use while fishing, it is to replace an older, Casio (not a G-shock) that was solar, but was really painful to adjust the time.

    This model can be considered ‘self managing’, it looks after itself, and we’ve just gone into summertime and I didn’t need to do anything!

    The black styling is cool, serves a purpose, but it doesn’t make the display the most clear in a majority of conditions. To be honest it’s at its best in the dark, when using the backlight button.

    Hands are luminous, so they san be seen just fine in the dark anyhow.

    Strap isn’t the most comfy when worn for a longer period of time, I do tend to wear watches a little loose, and with this one, its needed.

    I had been after a watch with the combination of solar and radio wave time set for a while, and when this was on a special offer, I grabbed it. I am glad I did, it serves my purpose just fine.

  9. MereditBurdge says:

     United Kingdom

    As others have said, this is a brilliant watch, for the price. Solar-powered, radio-controlled, and a G-shock to boot. The only drawback is that the face on this blacked-out model is not the most legible. No Seiko-style lume here! The hour markers are shiny-silver-metallic colour and do not have any luminescent dots (is this the right term?) – and with the black surround, they are very difficult to see unless you are in a very bright environmnet. So most of the time I have to read the time by looking at the position of the hands – which in all fairness is almost instinctive for most people.
    By the way, the hands have a very good luminescence (again – do not expect a Seiko diver lume!) – they are still glowing a bit at 3 am.
    Having said that I find that if I press the ‘light’ button, the display is very readable day or night. Also, with the blacked-out face, it does not scream “I am an adventure watch”, so easier to wear as an everyday watch.
    I see in other reviews criticisms about the small digital displays, the fact that you sometimes have to move the hands to see them etc. They are correct, but I guess I knew that when I ordered the watch – so ‘caveat emptor’ as they say…
    Overall, for 89, I think this is a great watch.

  10. MargheritaMansf says:

     United Kingdom

    Golden Review Award: 2 From Our UsersRecently browsing for a new watch to add to my collection and had overlooked what the latest gen gshocks have to offer. I came across this one with a 20 off voucher, added a tenners worth of promo discounts and got it for 67 which is a bargain for a solar atomic watch.

    It’s fairly complicated to set up and memorise the button presses so it’s useful to have the manual to hand for a while. It struggled to set when I forced a receive so had to go outside but seems to have updated again overnight with no problems. The negative displays can be tricky to read in certain light but I just have it set to auto illumination and the hands are fine for a quick glance at the time. There’s a neat feature that enables you to move the hands away from the displays which has always been an issue with this type of module. It’s a very smart looking watch and is more dressy than some of the rangeman/mudman designs. It’s larger than I would like but I can just about carry it off on a 7.5 inch wrist. The awg 100 is a similar smaller version but at the time of purchase it was 40 more to buy.

    I chose this over the gw7900b as it was better value and believed it to be smaller. I’ve since ordered one of those for comparison and it turns out it’s smaller. Now I have both I can’t decide which to keep so may flip one of my other watches and keep both.

    After 2 weeks I have really grown to like this watch. It’s chunky but understated and the tech is amazing for what I paid. I’ll be keeping it along with the GW7900 bought at the same time.

    For those moaning about it being complicated to setup have a look at the Watch Geek YouTube channel. He has a detailed tutorial for the stainless steel GST-W310 that basically uses the same module.

    So another update in 2023. I sold all my G-shocks including my Rangeman but then realised it’s handy to have a grab and go watch that doubles up as a reference for setting automatics. I got bitten by the Casio bug again and rebought this one and another gd350 and both reminded me how good these two underatted models are. Price has jumped significantly since I last had one but still way under RRP. I recently read the gaw-100b has been officially issued by the MoD to Royal Navy diver’s so it must be pretty good.

    4.0 out of 5 stars Great spec and high quality if a little l

  11. Justin Jaffe says:

     United Kingdom

    Golden Review Award: 5 From Our UsersThe led light is really very bright. In a dark room you could use it to get to the door without bumping into furniture. you can even set it so it comes on when you move your hand to the watch reading position, for a short time if its dark. The really strange thing is I don’t use it as the hand are luminous and easy to see in the dark. The light does enable to see the 3 sub dials in the dark, if you want to check the date, or the day of the week etc in the middle of the night.

    The date is shown month then date. The alarm. As in every single watch I had with this function, if you set the alarm it goes of so near silently it is nearly useless. The watch has 5 separate alarms. The instructions tells you to check the time only when your surroundings make it safe to do so, is it really necessary to be told that? Apart from those 3 minor issues they is much to like about the watch.

    It is very comfortable and looks great. I like the mix of a normal watch face with hands, then 3 small sub dials to show extra information. You can set a second city to view the time in that city quickly, and you can see the time in I think about 35 city’s . When you use this function it shows you the city code you set then the full city name.

    No problem in getting the time single when it is on my bed side table. You can easily check the watch has been updated by radio and at what time. It is of course water resistant. I believe the watch is rated 20bar which is easily snorkelling level or greater.

    Glad I got it. The reason I got it was advertised in a Canadian airlines magazine, to buy on board, at nearly double Amazons price.

  12. ChandraMoten says:

     United Kingdom

    Golden Review Award: 5 From Our UsersI decided that I wanted a solar battery and radio updates and this watch fits the bill. The face is clear and easy to read and, despite other reviews to the contrary, I also found the smaller lcd indicators clear enough for their function (it depends upon your expectations).

    I have set the ‘signal’ ON (hourly chime) which is discrete enough but very useful. It is possible to set 5 different alarms – the alarm tone is the same as the ‘signal’ function, so not an alarm to wake you up, but works great as a ‘reminder’ alarm.

    The radio updates have been consistent at around 2am each day (whilst asleep, with the watch both on or off my wrist. The watch battery came with the charge level at ‘m’ (medium) so I placed it in front of a small led lamp that we have one evening (whilst I watched tv) and after a few hours it was indicating ‘h’ (high). Daily use results in it falling back to ‘m’ but soon recovering up to ‘h’ without intervention – of course I always have our trusty led lamp should I feel concerned!

    The auto light on function works well … too well if you sleep with the watch on your wrist (c; The face illuminated well, but only for a (max) of 3 seconds (changeable). The luminous hands also work well – I wear glasses but it is bright enough for about an hour for me to read without my specs.

    I only have one negative for the watch (and it is being extremely picky!!) is that dust seems to collect on the face (I’m guessing it’s because the ‘bowl’ like design), easily wiped away.

    All in all a terrific watch for every day use. It is quite large, but I have quite large wrists so it is perfect for me. The strap fits around my (large) wrist with 4 holes to spare (7th hole from the watch). All in all … I love it!

  13. Maureen1043 says:

     United Kingdom

    Golden Review Award: 4 From Our UsersVery happy with this purchase.
    Not too big or heavy to wear yet robust enough to know it will sustain everything I throw at it. Wear it for work and know it will be knocked and bumped at some point. I have had G-Shock watches before and know they are solid and have high expectations of this one (last one went some 20 years!).
    I like the fact it is solar powered and radio controlled. No more worries about accuracy or battery life, and all seems to working as it should be so far.
    I think this a good looking watch and has all the features that I need; time, world time, stop watch, countdown timer, day/date and analog display. Small digi displays can be difficult too read from certain angles but the light is a bright blue/white and lights up the display very well. The hourly signal is a bit insipid (probably the only criticism of the watch).
    Easy to set up and use. I recommend taking 5 minutes to read the relevant sections of the instruction book. Will be worth it in the long run.
    This was delivered early by Amazon, free of charge and arrived on a Sunday. Ordered Friday with an expected delivery day the following Wednesday/Thursday so well done Amazon.
    It was well packaged and no damage. My only gripe was that I was out when it was delivered, and the guy just left it on the step. Very lucky it wasn’t taken. Next time I order anything I will probably specify a place to leave if I’m out.

    5.0 out of 5 stars Excellent G-Shock watch.

  14. Leslie Brenner Restaurant Critic says:

     United Kingdom

    Golden Review Award: 17 From Our UsersThe first “budget” G-Shock offering from Casio that includes both solar charging and atomic time correction. I bought this version for the more subtle display rather than the black and gold (each to their own) or silver bezel versions.

    The nice features above and beyond these headline two include an auto backlight switch which works pretty well when you tilt your wrist, but also doesn’t turn on that way if there is sufficient ambient light (a neat touch), lumed hands which are bright without that much exposure, the ability to easily see when the watch was last set to atomic time and five (FIVE!) alarms. Also the hands move out of the way of the digital sub-dials for certain functions and there is a slick, easy method to switch the digital time and analogue hands, so for example if you have the digital time set to your ‘abroad’ zone and the analogue hands set to your ‘home’ time, a quick two-button press will swap them over for easy readability when in-country (and the same for swapping them back).

    The not-so-great features include the typically bespoke G-Shock strap (need to buy 3rd party adapters to fit alternatives like a NATO strap), a stopwatch that is limited to an hour (!), a countdown timer that is limited to 100 minutes (!) and an alarm sound (or hour signal ‘chirp’) that is not that loud.

  15. Anonymous says:

     United Kingdom

    Golden Review Award: 25 From Our UsersThis is effectively an updated version of the AWG-M100-1AER. Like the old model, it is available with different coloured bezel/face combinations available in different country markets. In the UK, it seems silver, black or gold bezel with black face are available. It is a larger watch, the face of the dial is approx. 3.5cm in diameter against 3cm of the previous model and the case is about 1mm deeper. This may be an issue for someone with a smaller wrist, if you want to wear it under a suit jacket or simply prefer a smaller, more compact watch. Whilst the analogue hands were not a problem to see clearly in the previous version, being larger they are even easier to read in this new model and the three small dials are also larger and easily read. The big advantage with this model is the back light. In the previous model there was just one orange LED which while it lit the analogue hands reasonably well (but not brilliantly) in the dark, the three small dials were unlit and unreadable. Whilst in this updated model there are three white LEDs which light up each of the small dials and the analogue hands. The white light looks much smarter and there is no problem reading both the analogue hands and the three small dials even in pitch black. If the larger dimensions of this watch are not an issue for you, the readability of the three small dials makes this a definite improvement over the old model. Otherwise it is a typical Casio G-Shock which should perform well and be reliable