Product Details

• Amazon Sales Rank: #206 in Watches
• Brand: Casio
• Model: SGW100B-3V
• Band material: Nylon
• Bezel material: Metal
• Case material: Resin
• Clasp type: Buckle
• Dial color: digital
• Dial window material: Mineral
• Movement type: Quartz
• Water-resistant to 660 feet

Features

• Quartz movement
• 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)

Amazon.com Product Description
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. This watch is protected by a one-year manufacturer's warranty.

Development of the Timepiece Business
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.

Customer Reviews

Great watch except for thermometer!
I bought this watch recently and as any Casio watch its great looking and worth fully for the price tag. Compass, World timer, Stop watch, Alarm and timer features are great and easy to operate. My only complain is the thermometer which I find practically useless. The instruction manual says watch sensor needs 30 min to adjust to the atmospheric temperature. For instance if you take your watch from warm place to a cold environment it will give erroneous readings for 30 mins!! And if you are wearing your watch, you can't depend on the reading at all since body temperarture will ridiculously increase the reading even in a cold winter day! If you take off your watch and try to measure.. you have to wait 30 mins to get accurate readings. So this sensor is not useful at all for measuring temperature when you are outdoors. Other than this, I like the watch.

1st Compass Watch and I Like It
This is my first compass watch. I was concerned that the compass would be difficult to use and calibrate. After receiving the watch I was easily able to use and calibrate the compass. A neat undocumeted feature of the watch is that the current time is displayed in all modes - world time (which also shows the name of the world time city selected), compass, stopwatch, countdown timer, and alarm. The digits are large and easy to read. The backlight illuminates the digits, not the whole watch face. The cloth band is very comfortable and looks sturdy and well made. All in all a very good value for the money.

Good Running and Traveling Watch
The display is great - clear and very easy to read outdoors or indoors, in darkness or light. The world city time, chronograph, compass, and alarm modes are very easy to read and use. The only weak points for the watch are that the temperature reading is accurate only if you remove the watch from your wrist and let it sit for a time, and the band is a bit stiff starting out.