Okwu mmalite
Thank you for choosing the Casio MWA-300H Series watch. This manual provides essential information regarding the setup, operation, and maintenance of your new timepiece. Please read this manual carefully to ensure proper use and to fully understand the features of your watch.
The Casio MWA-300H is an analog watch featuring a chronograph, 100-meter water resistance, and luminous hands for enhanced readability. It is designed for versatile wear, suitable for both daily use and recreational water activities.

Foto: N'ihu view of the Casio MWA-300H Series watch, highlighting its green dial, chronograph sub-dials, and black resin band.
Setup: Initial Settings
Ịtọ oge
- Pull the crown out to the second click (time setting position). The second hand will stop.
- Rotate the crown to set the hour and minute hands. Ensure the AM/PM setting is correct if your watch has a 24-hour indicator or date changes at midnight.
- Tinye okpueze ahụ azụ n'ọnọdụ nkịtị. Aka nke abụọ ga-amalitegharị mmegharị.
Ịtọ ụbọchị
- Pull the crown out to the first click (date setting position).
- Gbanwee okpu ahụ ka ọ tọọ ụbọchị ahụ. Zere ịtọ ụbọchị ahụ n'etiti elekere itoolu nke abalị na elekere atọ nke ụtụtụ, n'ihi na nke a nwere ike igbochi usoro mgbanwe ụbọchị akpaka.
- Tinye okpueze ahụ azụ n'ọnọdụ nkịtị.
Ozi batrị
Your Casio MWA-300H watch is powered by 1 LR44 battery, which is included. The battery life is approximately 3 years. When the battery runs low, the watch may exhibit irregular movement or stop. It is recommended to have the battery replaced by a qualified watch technician to maintain water resistance.
Operating: Watch Functions
Iji Chronograph (Agba Nkwụsị)
The chronograph function allows for precise timing of events. Your watch features a 1/10-second stopwatch that captures elapsed, split, and 1st/2nd place times across three dedicated sub-dials.
- Starting the Stopwatch: Press button A (typically the upper right button) to start the stopwatch.
- Stopping the Stopwatch: Press button A again to stop the stopwatch.
- Resetting the Stopwatch: After stopping, press button B (typically the lower right button) to reset the stopwatch hands to zero.
- Ntụle oge nkewa: While the stopwatch is running, press button B to measure split times. The stopwatch hands will momentarily stop to indicate the split time, then resume timing. Press button B again to release the split time and display the current elapsed time.
Note: Refer to the specific button layout on your watch for exact button assignments.
Water Resistance (100 Meters)
Your Casio MWA-300H watch is water resistant up to 100 meters (330 feet). This rating means the watch is suitable for swimming, showering, and recreational water activities. It is not suitable for diving or snorkeling where significant water pressure changes occur.
- Do not operate the crown or buttons while the watch is wet or submerged.
- After exposure to saltwater, rinse the watch with fresh water and wipe it dry.
Aka na Ihe Nrịbama Na-egbukepụ egbukepụ
The watch features luminous hands and markers that absorb light and glow in the dark, providing readability in low-light conditions. The intensity and duration of the glow depend on the amount and type of light exposure.
Nlekọta
Nlekọta izugbe
- Wipe the watch regularly with a soft, dry cloth to remove dirt and moisture.
- Zere ikpughe elekere ahụ na oke okpomọkụ, ìhè anyanwụ kpọmkwem ruo ogologo oge, ma ọ bụ ike magnetik.
- Keep the watch away from solvents, detergents, perfumes, and cosmetics, as these can damage the resin materials.
Ngbanwe batrị
When the battery needs replacement, it is highly recommended to take your watch to an authorized Casio service center or a reputable watch repair shop. This ensures that the watch is properly sealed and its water resistance is maintained after battery replacement.
Water Resistance Checks
To maintain the water resistance of your watch, it is advisable to have it inspected periodically (e.g., every 2-3 years) by an authorized service center, especially if it is frequently exposed to water.
Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Watch hands do not move or move irregularly. | Batrị dị ala. | Replace the battery. Consult a professional watch technician. |
| Oge ezighi ezi. | Time not set correctly; watch has stopped and restarted. | Reset the time according to the "Setting the Time" instructions. |
| Date changes at noon instead of midnight. | Ntọala AM/PM ezighi ezi. | Wepụta oge site na awa 12. |
| Aka Chronograph anaghị atọgharị na efu. | Chronograph hands misalignment. | Consult the full Casio module manual for chronograph hand adjustment procedures, or contact customer support. |
| Moisture inside the watch. | Crown or buttons operated underwater; seals compromised. | Immediately take the watch to an authorized service center for inspection and repair to prevent further damage. |
Nkọwapụta
| Aha Nlereanya | MWA-300H |
| Ụdị ngosi | Analọg |
| Ụdị mmegharị | Quartz |
| Mmiri Nguzogide Omimi | Mita 100 (ụkwụ 330) |
| Atụmatụ ndị ọzọ | Chronograph, Date Display, Luminous Hands |
| Isi Iyi Ike | Battery Powered (1 x LR44 included) |
| Ihe gbasara ikpe | Resin |
| Ngwa igwe | Resin |
| Ihe kristal | Resin |
| Dayameta ikpe | 50.9 millimeters |
| Ọkpụrụkpụ ikpe | 14.3 millimeters |
| Obosara band | 22 millimeters |
| Ụdị mgbako | Kechie |
Akwụkwọ ikike na nkwado
Akwụkwọ ikike nwere oke
Your Casio MWA-300H watch comes with a limited warranty. Please refer to the warranty card included with your purchase for specific terms, conditions, and duration of coverage. The warranty typically covers manufacturing defects under normal use.
Nkwado ndị ahịa
For further assistance, technical support, or warranty claims, please contact Casio customer service. You can find contact information on the official Casio website or in the documentation provided with your watch.
For more detailed information, including specific module operations or advanced settings, please visit the official Casio support website or refer to the full module manual for your watch.





