Introduction
This manual provides detailed instructions for the proper use and maintenance of your Casio MCW-110H Series Chronograph Watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.
The Casio MCW-110H features a rugged design with an analog display, chronograph functionality, a date indicator, and 100-meter water resistance, making it suitable for daily wear and various activities.

Figure 1: Casio MCW-110H Series Chronograph Watch, front view. This image displays the watch face with its blue accents, three sub-dials for chronograph functions, and the date window at the 4 o'clock position. The watch features a black resin case and band.
Setup and Initial Settings
Before using your watch, it is important to set the correct time and date.
1. Setting the Time
- Pull the crown (located on the right side of the watch case) out to the second click position. The second hand will stop.
- Rotate the crown to move the hour and minute hands to the desired time. Ensure the AM/PM is correctly set if your watch has a 24-hour indicator or if setting the date.
- Push the crown back in to the normal position. The second hand will resume movement.
2. Setting the Date
- Pull the crown out to the first click position.
- Rotate the crown clockwise to advance the date. Do not set the date between 9:00 PM and 1:00 AM, as this may interfere with the date change mechanism.
- Once the correct date is displayed, push the crown back in to the normal position.

Figure 2: Close-up view of the Casio MCW-110H watch face, highlighting the crown and pushers for setting time and operating the chronograph. The sub-dials for minutes, seconds, and 24-hour time are clearly visible.
Operating Instructions
Using the Chronograph
The chronograph function allows you to measure elapsed time. The MCW-110H features a 60-minute chronograph with 1/10th second measurement.
- Start/Stop: Press the upper right button (A) to start the chronograph. Press it again to stop.
- Reset: While the chronograph is stopped, press the lower right button (B) to reset the chronograph hands to the zero position.
- Split Time: (If applicable, typical for chronographs) Press button (B) while the chronograph is running to measure split times. Press (B) again to release the split time and display the current elapsed time. Press (A) to stop, then (B) to reset.
Note: If the chronograph hands do not return to the zero position after resetting, refer to the "Troubleshooting" section for chronograph hand position adjustment.
Maintenance
Proper care will ensure the longevity and performance of your Casio MCW-110H watch.
Water Resistance
This watch is rated for 100-meter water resistance. This means it is suitable for swimming, snorkeling, and showering. However, it is not recommended for scuba diving. Do not operate the crown or buttons while the watch is wet or submerged in water, as this can compromise the water resistance.
Battery Replacement
The watch uses one SR920SW battery, with an approximate battery life of 3 years. When the second hand begins to move at two-second intervals, it indicates that the battery is low and needs replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure proper sealing and water resistance.
Cleaning
Wipe the watch regularly with a soft, dry cloth. For resin bands, you can gently clean them with a mild soap solution and rinse thoroughly with fresh water, then dry completely. Avoid using harsh chemicals or abrasive materials.
Troubleshooting
| Problem | Solution |
|---|---|
| Watch hands stop or move erratically. | The battery may be low. Replace the battery as soon as possible. |
| Date changes at noon instead of midnight. | The AM/PM setting is incorrect. Advance the time by 12 hours. |
| Chronograph hands do not reset to zero. | Chronograph Hand Position Adjustment:
|
| Water ingress or fogging inside the crystal. | Immediately take the watch to a qualified service center. Do not attempt to open the watch yourself. |
Specifications
- Model Number: MCW-110H-2A2VCF
- Brand: Casio
- Movement: Quartz
- Water Resistance: 100 meters (330 feet)
- Chronograph: Yes
- Date Display: Yes
- Case Material: Resin
- Band Material: Resin
- Approximate Battery Life: 3 years (using SR920SW)
- Product Dimensions: 9.84 x 1.57 x 0.79 inches
- Weight: 4.23 ounces
Warranty and Support
Your Casio watch is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your purchase for specific terms and conditions, including the warranty period and coverage details.
For technical support, service, or warranty claims, please contact Casio customer service or visit the official Casio website. Keep your proof of purchase for warranty validation.
You can find more information and support on the official Casio website: www.casio.com

Figure 3: The packaging box for the Casio MCW-110H watch. The box is predominantly blue with the Casio logo prominently displayed, indicating genuine product packaging.





