Casio Men’s SGW100B-3V Digital Compass Twin-Sensor Sport Watch

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Casio Men’s SGW100B-3V Digital Compass Twin-Sensor Sport Watch

Casio Men's SGW100B-3V Digital Compass Twin-Sensor Sport Watch

  • Quartz movement Battery: CR2025 3V Module# 3157
  • Protective mineral crystal protects watch from scratches
  • Case diameter: 47.6 mm
  • Resin case; digital-gray dial; day-date-and-month functions
  • Water-resistant to 660 feet (200 M)

Casio’s corporate creed is “creativity and contribution.” It expresses the company’s commitment to contributing to society by offering the kind of original, useful products that only Casio can. Products with innovative functions assist people in their daily lives and keep society moving forward. They also bring joy to people and help to create new culture. When even a single new product is widely adopted, whole new markets develop, and this in turn fosters growth in related industries. This is the story of Casio’s contribution to society-innovative products enhancing people’s lives. Inspiration finally came to the engineer, who had never given up experimenting, on a day off just before the development deadline. After going out to lunch feeling low, he was watching some children playing with a rubber ball in the park next to the research and development center when the idea of the module floating in the space inside the ball suddenly came to him. In order to realize this concept, he came up with a hollow structure in which the module is supported at just a few points with a slight space around it.Complete with a digital compass, Casio’s Twin Sensor Watch #SGW100B-3V boasts innovative technology and sporty digital style. Temperature and direction readings make this rugged timepiece ideal for workouts, outdoor adventures, and water sports. There’s also world time (29 time zones/48 cities), magnetic declination correction, a 1/100-second stopwatch, four daily alarms and one snooze alarm, auto calendar pre-programmed until the year 2099, and a mineral glass for extra protection against scratching. Direction readings and time are indicated on a large LCD that is divided into three segments for a clear, easy-to-understand display. Water resistance to 660 feet and a rugged resin band ensure durability, while digital quartz movement provides reliable precision.

List Price: $ 69.95

Price: $ 41.97

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  1. 27 of 27 people found the following review helpful
    5.0 out of 5 stars Full Marks on Readability, Functionality, and Comfort, March 29, 2014
    By 
    Blake Law (Hendersonville, NC) -
    Verified Purchase(What's this?)
    This review is from: Casio Men's SGW100B-3V Digital Compass Twin-Sensor Sport Watch (Watch)
    I looked around a lot for a watch like this, and read a lot of reviews before buying it. I wanted a good, dependable EDC (every day) watch that could time me on runs, hikes, and help me out on the trail with some general direction, all for less than $75. I actually ordered the comparable TIMEX (Expedition Trail T49612) version of this watch and sent it back. The TIMEX was huge, hard to read, and just didn't look good (greenish markings on huge black rubber case). I seem to keep coming back to CASIO because they seem to just "get it right" for me.

    What's the difference between the SGW100B-3V (this watch) and the SGW100-1V, you ask? It's the same watch, as near as I can tell, except the 3V has a high-quality nylon wristband and the 1V has a rubberized sports band. I chose the 3V because I have not had good experience with rubberized wristbands. They aren't too comfortable, either. I wore a G-SHOCK for a few years until all the eyelets in the band tore into one, long slit. This didn't hold my watch on too well, and I lost it in the ocean. The nylon on the 3V is great. It is durable, looks better than the rubber wristband, and is comfortable. It doesn't pull on my arm hairs like the rubber always did.

    Now, for the watch itself. Great readability and functionality. I like the how the seconds are displayed on the line under the hour and minutes, so your eyes instantly fall on the 4-digit time. The ILLUMINATOR feature makes all the digits shine, but not the face. This makes the watch extremely readable in the dark, but you're not going to be able to use it like a mini-flashlight. The 4-button controls are easy to master. Here's a pro-tip for you: Rather than straining your eyes to read the tiny operation manual, look up the PDF online from Casio and use the zoom to read it like normal text.

    The digital thermometer is just as others have described. On my wrist, it usually shows about 85 degrees (no matter what the air temp is), but it is accurate when the watch is unworn for 30 minutes or more. The temperature is factory calibrated, but you can check it against another thermometer and adjust it by a few tenths of a degree if you wish. I think the thermometer function is helpful for waking up in a tent or bivouac with your 3V next to you and checking the temp before you crawl out of your bag.

    The digital compass is excellent. I have checked it against several other commercial and mil-spec compasses and it's readings are pretty dead on. Even though CASIO says it's not meant for accurate land navigation, but more for general direction, I feel it could hang in there for some basic land nav. There are 16 directional arrow indicators around the outside of the face for indicating North, so your arrow is less accurate than your digital compass degree reading (360 degrees). The compass needs to be user-calibrated something like every 100 days. This means spinning your watch 360 degrees while it is taking readings. I'm really not sure what the purpose of this is--it might have something to do with ensuring the magnetic sensor has not become inaccurate due to ambient magnetism or a bad bearing. There is also a declination adjustment (look yours up online by ZIP code) so that your watch can show you true North. I play a little "game" with the compass when I'm bored. If I'm somewhere I've never been, I'll mentally guess which direction is North and check myself with the watch. I know; I'm a nerd.

    The world time feature is great with plenty of city time-zones and a DST toggle. If your friend is overseas and you want to know if it's too early/late to call, it's literally ONE button-push away to check. I keep mine on LON (London) time so I can quickly see UTC.

    Standard stop watch. Elapsed, split time, and two-finisher capabilities. The buttons are pretty easy to push, and this helps with reliable start and stop. We've all been there, with our thumbnail on a tiny metallic button, when we tell our friend, "Ready... Set... Go! Wait, I mean, Go! Now!"

    Standard timer. Keeps going when viewing other modes.

    Four alarms WITH snooze function. Not bad!

    Overall, the watch just looks good. I would say it gives off a hiker or possibly military-type look. The different colored markings on the case and the silver/grey bezel kind of catch the eye. You can tell it's not a cheap drug-store watch just by the look of it (which is more than you can say for some of the CASIO styles). If you're not used to a large watch, you'll think this is pretty big. It's fine for me. I do have to lift it slightly up on my arm when getting into the front-leaning rest position (push-ups) or else it digs into the top of my hand, so that's something to consider.

    I have three minor nit-picks of the watch, but not enough to dock a star-rating on a stellar watch:
    - You can only scan through the time-zones in WT mode in one direction.
    - I can't remember... Read more
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    Blake Law2017-10-01 00:09
  2. 26 of 26 people found the following review helpful
    5.0 out of 5 stars Great for the price, September 19, 2012
    By 
    M. C. (Seattle, WA USA) -
    Verified Purchase(What's this?)
    This review is from: Casio Men's SGW100B-3V Digital Compass Twin-Sensor Sport Watch (Watch)
    Some great reviews out there but I thought I would do a thorough review of the pro/con's.

    *** Pro: ***
    Large face
    Nylon band (last longer)
    World time
    Dual Time
    Stop watch/Timer
    Compass (w/ declination)
    Temperature (w/ calibration)
    Back Lit
    Protected Face (recessed)

    *** Con: ***
    Alarm too quiet
    Compass time too short
    Back Light time too short
    Temperature reads body temp

    First off I got this watch for world traveling. Reading the reviews I did not see anyone mention that it has the capability of doing Dual Time. Basically you can have your "Home" time zone on top and "Current Location" on bottom. This is great and was exactly what I was looking for. Once you set-up your home time then you can flip through world cities while traveling. It also has Day Light Savings mode for the Dual Time in case certain cities that you travel to do not have day light savings.

    Some people claim that the compass is inaccurate. Well first off I calibrated it, then I set my declination. Many people failed to mention this in their review. There is a feature where you can adjust for your location. My home city's current declination is 16deg. That is huge, so you have to adjust it for this. I am sure many people did not even realize this feature. Finally I measured my casio compass with a real compass. I would say it is about 1-3 degree's off of my real compass.

    I have been trying to calibrate my Temperature gauge. I have a home digital temp and my casio reads about 0.4 degree higher than my wall temp gauge. Of course I am not even sure if my wall temp is that accurate. To me 1/2 a degree is not bad for a watch. Mind you that this is calibrated with air temp, not on my wrist. I will try wearing the watch and then recalibrate with my body temp. I am not sure if that will work correctly.

    Another small nice feature is the double beep once you hit the main Time screen. That means you can quickly change modes without looking to get back the the Time mode.

    A few very minor things that casio should have adjusted on this watch:

    They should have made the compass feature delay longer. I think it is set for 10 seconds. But by the time 10 seconds has passed I have only been able to adjust my body to the direction. Then I have to push it again to get another reading. I see no reason to have it delayed at 20-30 seconds. And then push a button if you want to see the clock.

    The alarm needs to be louder like others have pointed out.

    The back light needs to be at least 5 seconds. Not 1-2 seconds.

    The watch face is a tad large, however that is the IN thing right now with watches.

    Finally it would be nice if the bezel would rotate so you can adjust it for the compass.

    Overall for the price and features I have not found another watch that is better. I did a lot of research on every brand and prices. I wanted a watch where I would not be heart broken if I lost it.
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    M. C.2017-10-01 00:18
  3. 68 of 71 people found the following review helpful
    4.0 out of 5 stars A much demeaned watch that many don't understand., May 25, 2015
    Verified Purchase(What's this?)
    This review is from: Casio Men's SGW100B-3V Digital Compass Twin-Sensor Sport Watch (Watch)
    One of the major problems purchasing this watch were the large number of reviews that were negative - because the purchasers aren't knowledgeable in technology or skilled in land navigation. Two complaints kept popping in in various posts, that the compass wasn't accurate and the temperature readings off.

    First, It has to be acknowledged that you are strapping a compass and thermometer to your arm where it will have direct contact with your skin, and using it in areas that affect it's performance. The most basic source of error is the fact that magnetic north isn't at the north pole - it can and is up to 15 degrees or more in error by its physical location hundreds of miles away. And that we are trying to measure a natural line of magnetism at a very low level in built up human habitation. We use a lot of electricity, it creates fields, and it's part of our construction which can be largely steel.

    Bluntly, being ignorant of that is the source of most of the complaints. The watch works fine, in fact, it's a great watch with features lifted directly from models priced $100 more and up. The compass works IF you bother to set the declination and then use it within its mechanical limits - such as keeping it level to the earths surface when activated. No compass using earths magnetic lines can find north if it's tilted up to any significant degree - but that is how we typically look at a watch. And no thermometer will read air temperature strapped in direct contact with our body - it will read skin temperature.

    What we have are customers who are buying an affordable Pro Trek grade watch who don't have the training and education to understand it.

    Aside from that - the reverse backlight functions appropriately, those who wish for a longer timed duration need to accept the compromise that leaving it on extensively consumes battery power - it doesn't solar recharge. That being said, solar charging isn't all that when you work nights extensively and are forced to sleep days. I choose battery power precisely because it can be changed and is reliable under negative lighting situations. The reverse illumination isn't particularly good at being used as a flashlight - which it wasn't intended to do. That technical fad has it's disadvantage when you don't need to wake your spouse checking the time at Oh Dark thirty - especially when the illumination of a Dive rated watch was already distractive with it's Superluminova treatment. With the Casio you get the time in the dark a lot less obtrusively.

    The nylon woven band is working fine, I'm more than aware that fabric bands can and will absorb sweat which will eventually build up and cause odor. They ALL do that and the problem is to treat them with silver or anti bacterial properties - but that costs money. If this was a tactical grade watch over $200, it should be demanded, under $50, what do you expect?

    Again - the price level brings on consumers who's expectations go beyond technical and economic feasibility. If anything, it appears as an orchestrated chorus to demean the design, because it isn't in the same class with identical features of watches priced $100 more. Well, it's not - there are some tradeoffs - but none that create any desire for me to spend the money when this does just fine. Most of the higher priced watches aren't that superior on a feature per cost basis, it's social rank that is being purchased.

    If you need to look like you have an expensive watch, look elsewhere, plenty incorporate all the styling elements and the extra digit placeholder in the price to impress others. Otherwise, this model performs, and well - if you understand what you are asking of it. It's a tool in that regard, are you a skilled tool user? If not, then the results are apparent.
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    Mark Monteleone2017-10-01 01:11