Casio Men's AQF100W-7BV Forester Sports Thermometer Watch

4.1 out of 5 stars 186 customer reviews
| 10 answered questions

Available from these sellers.
  • Imported
  • Quartz movement
  • Timing: During each even-numbered minute Memory Measurement Timing: At the top and the bottom of each hour Memory capacity: Up to 50 sets of data (time, temperature) Temperature tendency graph Changeover between Fahrenheit (ºF) and Celsius (ºC)
  • Auto electro-luminescent backlight with afterglow
  • Resin case; digital movement; day-and-date functions
  • Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving

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Product Description

Powerfully styled and packed full of robust timekeeping and environmental features, the Casio Forester analog-digital stainless steel men's watch offers a stylish black sports resin band that will stay comfortable during your most active sport outings. The large round stainless steel watch case measures 42mm (1.65 inches) wide, and it features an Arabic numeral and small minute index readout around its inner rim that interact with the silver skeleton hands. The light blue LCD face provides current time and date as well as a view to current moon phase. It includes a thermometer readout that measures every even-numbered minute, and you can save up to 50 time/temperature data sets. Other timekeeping features include:

  • World time: 30 time zones, 50 cities, city code display, daylight saving on/off
  • 1/100-second stopwatch with 100-hour capacity and following modes: elapsed time, split time, 1st-2nd place times
  • Countdown timer (up to 100 hours)
  • Auto-calendar (pre-programmed until the year 2099)
  • 12/24-hour formats
  • Daily alarm
  • Hourly time signal (which can be turned off)
This watch also features a ±30-second accuracy per month, Afterglow backlighting, and water resistance to 100 meters (330 feet)--offering protection from accidental splashes as well suitable for swimming, snorkeling, and light recreational diving.


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.

Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, atomic timekeeping means the users never have to reset the time. Recently, Casio launched a series of Bluetooth watches that sync to the users cell phone to automatically update the time. Casio is always moving time forward.

  • Product Dimensions: 5 x 4 x 8 inches
  • Shipping Weight: 4.8 ounces
  • Item model number: AQF100W-7BV
  • Date first available at November 6, 2006
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Amazon Best Sellers Rank: #20,546 in Watches (See Top 100 in Watches)
    • Average Customer Review:
      4.1 out of 5 stars 186 customer reviews

    Product Specifications

    Watch Information
    Brand, Seller, or Collection Name Casio
    Model number AQF100W-7BV
    Part Number AQF100W-7BV
    Model Year 2014
    Item Shape Oval
    Dial window material type Mineral
    Display Type Analog
    Clasp Buckle
    Case material Resin
    Case diameter 42 millimeters
    Case Thickness 14 millimeters
    Band Material Resin
    Band length mens
    Band width 22 millimeters
    Band Color Black
    Dial color Digital
    Bezel material Stainless steel
    Bezel function Stationary
    Calendar Day and date
    Special features Stop watch, Timer, Luminous
    Movement Quartz
    Water resistant depth 330 Feet

    Customer Questions & Answers

    Customer Reviews

    Top Customer Reviews

    After reading the reviews on here, I was a bit hesitant about buying this watch. I have had other Casio thermometer watches in the past, and was able to calibrate them to the accurate temperature while on my wrist. Despite all the reviews complaining about the inaccuracy of the temp, THIS WATCH IS NO DIFFERENT. All that needs to be done is to get a temp reading with another thermometer, and then program this watch according to the instruction booklet. That's it. It's reading temperature very accurately as I type. Yes, the instruction booklet is complicated (the PDF version from is MUCH easier to follow), but it is worth it!
    5 Comments 90 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    I have returned to Casio after using a Timex Expedition electronic compass watch for the last 6 1/2 years. The Timex Expedition's batteries kept dying after only a year even though they were supposed to last three to four years, plus the Expedition kept resetting itself.

    This Casio Forester packs a lot into a watch for Amazon's super-low price.

    If you spend a lot of time outdoors and want to know the temperature, tides, and moon phases, this is the perfect watch. Be warned, though: The instruction booklet is wrong in detailing how to calibrate the temperature sensor. Calibrate the sensor while wearing the watch. Otherwise, your body heat will add almost 20 degrees to the sensor's reading. Right now my watch says it's 70.2 degrees inside. A nearby thermometer says it's 70.9 degrees.

    To get the most accurate tidal data, don't rely on using the nearest major city's longitude or lunitidal value. Use Google Earth or another mapping application to get your exact longitude. Then use data provided by the National Oceanic and Atmospheric Administration to determine your locale's precise lunitidal value ([...]

    Aside from the specific features this watch has, positives include the luminescent analog hands, the Daylight Saving time toggle switch, and the World Time function that enables you to see the current time in major cities around the world. Also, the analog display enables you to see the time when you're using the stopwatch, timer, or tidal calendar.

    Negatives include the fact that you have to set the analog hands separately from the digital setting. This means that toggling Daylight Saving time on and off for the digital display has no effect on the analog display. Another negative is the tiny date display and the relatively small digital time display. The time should be larger than the temperature. This is, after all, a watch first and foremost.
    Comment 26 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    I've had Casios before, and this one is a step down. It is very difficult to set up, especially the analog time. Here's my biggest complaint and biggest warning: If you are looking to buy this watch as an accurate displaying of the temperature, then look for another product. What they only tell you in the fine print after you buy the watch is that the temperature reading is affected by your body temperature. So...if you're planning on actually WEARING the watch (hello??) you won't get an accurate temperature. I'm sitting in a 75 degree room typing this, and the watch says the temperature is 92.4 degrees farenheit. Like I said, a tad disappointing.
    5 Comments 79 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Verified Purchase
    I love this watch but it has one major flaw. The bezel is not protected by the case at all. It actually is a dome shape instead of being set into the case like most sport type watches. I got 2 big scratches in it within 2 weeks. As above....the temp does not read correctly unless you take the watch off but I expected that.
    Comment 16 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Verified Purchase
    The watch is excellent, but you should read the instructions in the manual first.
    What to consider?

    1. Physically, it is impossible to obtain a correct room temperature while the watch remains in contact with our skin. Because get an average ambient temperature and the air temperature surrounding the watch.

    2. The time it takes to get the ambient temperature is proportional to the time it takes the entire clock to be heated or cooled. The reason is simple: The sensor is inside the clock and outside temperature adopt it after all the clock is at the same temperature. If the watch is under water or any other fluid, this time relatively short, but if this one surrounded by air, it takes longer to take the temperature due to that the transfers temperature by air molecules is much smaller.

    The approximate time it takes to get the room temperature is approximately 30 to 45 minutes. If immersed in water, the time it takes to obtain the water temperature is approximately 5min.

    El reloj es excelente, pero es recomendable leer primero las indicaciones del manual.
    ¿Qué hay que considerar?

    1. Físicamente, es imposible obtener una temperatura correcta del ambiente mientras el reloj permanece en contacto con nuestra piel. Porque obtenemos un promedio de la temperatura ambiente y la temperatura del aire que rodea al reloj.

    2. El tiempo que tarda en obtener la temperatura ambiente es proporcional al tiempo que tarda el reloj entero en calentarse o enfriarse. La razón es simple: El sensor está dentro del reloj y éste adoptará la temperatura exterior despues que todo el reloj este a esa misma temperatura.
    Read more ›
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