| Watch Information | |
| Brand Name: | Casio |
| Model number: | EFA11-D-2AV |
| Part Number: | EFA11-D-2AV |
| Watch Information | |
| Brand Name: | Casio |
| Model number: | EFA11-D-2AV |
| Part Number: | EFA11-D-2AV |
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.
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Most Helpful Customer Reviews
2 of 2 people found the following review helpful:
5.0 out of 5 stars
Fabulous watch!,
By Brian B (Durango, CO USA) - See all my reviews
This review is from: Casio Men's EFA11-D-2AV Edifice Sports Watch (Watch)
This watch is ALL stainless steel. If you're tired of watches with a plastic case where the silver paint wears off and the case breaks under normal wear, this may be the watch for you. It is a little heavy but to be expected from a solid steel case. It has the feel of real quality. The alarm could be a little louder but the sound has to make it through all that steel. I owned the plastic version of this watch; the point where the watchband attaches broke within two years (so much for a watch with a 10 year battery). Note that this watch is 100 meter water resistant not 50; also this is a Casio EFA110D not an EFA11-D (both very good things). The seller JUSTCALCULATORS was excellent. I can't say enough good things about this watch. I am very pleased with the purchase.
4.0 out of 5 stars
Beautiful watch,
By Health For Life (Sunnyvale, CA) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: Casio Men's EFA11-D-2AV Edifice Sports Watch (Watch)
I wanted to buy an inexpensive watch but couldn't stand any plastic or cheap material. This watch is ideal for that purpose. It is pretty and all metal. However I find the hands do not stand out very clearly from the wathc face because of their colors. It would be nice if they use lighter color for the two watch hands. But it's not such a big deal. After a few weeks, I'm getting used to the new look of my watch now!
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