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How to Set Time, Change Battery, Adjust Band, and Use Stopwatch on Casio W-800H-1A Digital Watch - Step-by-Step Guide

How to Set Time, Change Battery, Adjust Band, and Use Stopwatch on Casio W-800H-1A Digital Watch - Step-by-Step Guide

How to set the time on a Casio W-800H watch?

Setting the time on the Casio W-800H watch is easy and straightforward. This classic Casio watch has a digital display and button controls to set the various functions.

Steps to set the time:

  1. Press and hold the Adjust Button on the bottom left side of the watch for 2-3 seconds until the seconds digits start flashing.
  2. Press the Start/Stop button on the bottom right side to reset the seconds to 00.
  3. Press the Adjust button again to move on to adjusting the hour. Use the Start/Stop button to cycle through the hours and get to the correct hour.
  4. Press Adjust again to set the minutes. Use the Start/Stop button to cycle through the minutes to set the correct time.
  5. Press Adjust one more time to cycle through settings for 12/24 hour time. Use the Start/Stop button to select your desired 12 or 24 hour time display.
  6. Once you have the exact time set, press Adjust again to exit the time set mode. The watch will resume normal operation.

The Casio W-800H also has other functions like alarm, stopwatch and timer that can be adjusted using the same Adjust and Start/Stop buttons. Refer to the manual for more details on setting these other functions.

With the simple steps above, you can easily set the exact time on your Casio W-800H watch.

How to change the battery in a Casio W-800H?

The Casio W-800H watch requires one CR2025 lithium coin cell battery. The battery life is approximately 3 years before it needs to be replaced.

Steps to change the battery:

  1. Turn the watch over and locate the screw on the backplate. Use a small Phillips head screwdriver to remove the screw.
  2. Carefully lift off the backplate. This will expose the inner workings and battery.
  3. Using a thin plastic pry tool, gently lift up the battery to remove it from the holder.
  4. Insert the new CR2025 battery with the positive + side facing up.
  5. Place the battery down into the holder and press down gently to secure it.
  6. Inspect the rubber gasket on the backplate and make sure it is aligned properly before replacing the backplate.
  7. Screw the backplate back on securely, but do not over tighten.

Once the new battery is installed, you will need to reset the time and date settings on the watch:

  • Press and hold the Adjust button to enter time set mode.
  • Use Start/Stop and Adjust buttons to set the time and date.

That's it! With a new CR2025 battery your Casio W-800H watch should work properly again.

Be sure to dispose of old batteries properly according to local regulations.

How to adjust the band size of a Casio W-800H watch?

The resin band on the Casio W-800H watch can be adjusted to fit wrists of different sizes for a comfortable and secure fit.

Steps to adjust band size:

  1. Turn the watch over and locate the adjustment holes on the band. There are multiple adjustment holes on each side of the band.
  2. On the underside of the band are metal pin and buckle. Locate the arrow indicators on the pin.
  3. To loosen the band, use a small tool to push the pin in the direction indicated while sliding the band out a notch. This will unlock it.
  4. To tighten, slide the band in and push the pin in the opposite direction as indicated until it locks.
  5. Adjust both sides of the band evenly for symmetry and ideal fit. Do not over tighten.

For example, if the band is too loose on your wrist, you can push the pins on both sides and slide the band in a notch on each side for a tighter fit.

The Casio W-800H band is designed to fit wrists sizes ranging from 5.7 inches to 8.4 inches. Adjust in small increments for the right fit - not too tight as to restrict blood flow, but not so loose that the watch shifts around.

With some simple adjustments using the pin and buckle system, you can customize the Casio W-800H band to comfortably fit your wrist size.

How to use the stopwatch on a Casio W-800H?

The Casio W-800H watch has a handy stopwatch feature built in for timing events down to 1/100th of a second. The stopwatch can time up to 24 hours.

Using the stopwatch:

  1. Press the Mode button on the bottom left side of the watch to enter Stopwatch Mode. 'STW' will display.
  2. Press Start/Stop to begin timing. The stopwatch will start counting up.
  3. Press Start/Stop again to stop timing. Press it again to resume timing.
  4. To reset, press and hold the Adjust and Start/Stop buttons simultaneously for 2-3 seconds while in Stopwatch Mode until zeros display.

The stopwatch is great for timing activities or events such as:

  • Athletic performances - time laps or intervals during training.
  • Cooking and baking - accurately time stages of recipes.
  • Games and competitions - time scores or rounds.
  • Speeches or presentations - time length.

The Casio W-800H stopwatch allows you to take multiple split times as well. Press Start/Stop during timing to view split times, then press Start/Stop again to continue overall timing.

With its easy-to-use buttons and accurate 1/100th second timing, the W-800H stopwatch is a handy tool for timing nearly any activity or event.

How To Set The Time On Your CASIO W-800H-1A Wrist Watch?

To set the time on your CASIO W-800H-1A Wrist Watch, follow these steps:

  1. In the Timekeeping Mode, hold down the lower left button until the seconds start to flash, which indicates the setting screen.
  2. Press the upper right button to adjust the hours, minutes, and seconds.
  3. Press the lower left button to move to the next setting, and repeat step 2 to adjust the date, month, and year.
  4. After you have set the time and date, press the lower left button to exit the setting screen.

Note that the watch's built-in full automatic calendar makes allowances for different month lengths and leap years, so once you set the date, there should be no reason to change it except after you have the watch's battery replaced.

How To Set The Date On Your CASIO W-800H-1A Wrist Watch?

To set the date on your CASIO W-800H-1A Wrist Watch, follow these steps:

  1. In the Timekeeping Mode, hold down the A button until the seconds start to flash, which indicates the setting screen.
  2. Press the B button to move the flashing in the sequence shown below to select other settings.
  3. When the setting you want to change is flashing, press the C button to change it. For example, to change the year, press C until the year starts flashing, then use the B button to adjust the year.
  4. After you have set the date, press the A button to exit the setting screen.

Note that the watch’s built-in full automatic calendar makes allowances for different month lengths and leap years, so once you set the date, there should be no reason to change it except after you have the watch’s battery replaced.

How To Switch Between 12-Hour And 24-Hour Format On Your CASIO W-800H-1A Wrist Watch?

To switch between 12-hour and 24-hour timekeeping on your CASIO W-800H-1A Wrist Watch, follow these steps:

  1. Enter the Timekeeping Mode by pressing the A button.
  2. Hold down the A button for at least two seconds until the name of the currently selected Home City is displayed.
  3. Press the D button eight times to display the 12-hour/24-hour setting screen.
  4. Press the C button to toggle between the 12-hour and 24-hour formats.
  5. After you have selected the desired format, press the A button to exit the setting screen.

Note that the watch displays the time in the format you select, regardless of whether you are in the Timekeeping Mode or any other mode.

How To Switch Between Different Time Zones On Your CASIO W-800H-1A Wrist Watch?

To switch between different time zones on your CASIO W-800H-1A Wrist Watch, you need to use the Dual Time Mode. This mode lets you keep track of time in a different time zone. To set the Dual Time Mode, press the mode button until the Dual Time Mode is displayed2. Then, press and hold the adjust button until the hour digits start to flash2. Use the B button to move the flashing in the sequence shown below to select other settings. When the setting you want to change is flashing, press the C button to change it. After you have set the time, press the adjust button to exit the setting screen2. Note that the watch always shows the current time in the Alarm, Stopwatch, and Dual Time modes.


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