Casio MWA-300H-1AV
Casio MWA-300H Series MWA300H-1AV Watch User Manual
Model: MWA-300H-1AV
Einführung
This manual provides detailed instructions for the proper use and maintenance of your Casio MWA-300H Series MWA300H-1AV watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.
The Casio MWA-300H-1AV is a durable analog watch featuring a chronograph, 100-meter water resistance, and a clear, easy-to-read display with luminous hands.
Aufstellen
Anfängliche Zeiteinstellung
- Ziehen Sie die Krone heraus: Gently pull the crown (the knob on the side of the watch) out to the first click position.
- Stellen Sie die Uhrzeit ein: Rotate the crown to move the hour and minute hands to the desired time. Ensure AM/PM is correctly set if your watch has a 24-hour indicator or date changes at midnight.
- Drücken Sie die Krone ein: Once the time is set, push the crown back in to the normal position. The second hand will begin to move.
Datumseinstellung
The watch features a date window at the 3 o'clock position.
- Ziehen Sie die Krone heraus: Ziehen Sie die Krone vorsichtig bis zur ersten Klickposition heraus.
- Datum anpassen: Rotate the crown in the opposite direction from time setting to change the date. Avoid setting the date between 9:00 PM and 1:00 AM, as this may interfere with the automatic date change mechanism.
- Drücken Sie die Krone ein: Drücken Sie die Krone wieder in die normale Position.

Image: The Casio MWA-300H-1AV watch face, highlighting the crown on the right side for time and date adjustments.
Bedienung der Uhr
Zeitmessung
The watch displays hours, minutes, and seconds using analog hands. The quartz movement ensures accurate timekeeping with a precision of approximately ±20 seconds per month.
Stoppuhrfunktion
The Casio MWA-300H-1AV includes a 1/10-second stopwatch for precise timing. This function is controlled by the two push-buttons located on either side of the crown.
- Starting the Stopwatch: Press the upper right button to start timing.
- Stopping the Stopwatch: Press the upper right button again to stop timing.
- Resetting the Stopwatch: While the stopwatch is stopped, press the lower right button to reset it to zero.
- Split Time: Press the lower right button while the stopwatch is running to record a split time. Press it again to return to the current elapsed time.
The three sub-dials on the watch face indicate stopwatch minutes, seconds, and 1/10 seconds.
Wasserdichtigkeit (100 m)
This watch is rated for 100-meter (330 feet) water resistance. This means it is suitable for swimming, showering, and recreational water activities. It is not suitable for scuba diving or high-impact water sports.
- Stellen Sie sicher, dass die Krone vollständig eingedrückt ist, bevor sie mit Wasser in Berührung kommt.
- Do not operate the crown or push-buttons while the watch is wet or submerged.
- Nach Kontakt mit Salzwasser die Uhr mit Süßwasser abspülen und trocken wischen.
Leuchtendes Display
The hour and minute hands, along with certain markers, are treated with a luminous material that absorbs light and glows in the dark, providing readability in low-light conditions.
Wartung
Reinigung
- Wischen Sie das Uhrengehäuse und das Armband regelmäßig mit einem weichen, trockenen Tuch ab, um Schmutz und Feuchtigkeit zu entfernen.
- For resin bands, a mild soap solution and a soft brush can be used, followed by thorough rinsing and drying.
- Verzichten Sie auf chemische Reiniger, Lösungsmittel oder Scheuermittel, da diese die Oberfläche der Uhr beschädigen können.
Batteriewechsel
The watch is powered by one SR920SW battery, which has an approximate lifespan of 3 years. When the watch stops or the second hand moves erratically, it indicates a low battery. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and water resistance.
Vorsichtsmaßnahmen hinsichtlich der Wasserbeständigkeit
- Have the water resistance gaskets checked and replaced every 2-3 years, especially if the watch is frequently exposed to water.
- Avoid exposing the watch to extreme temperature changes, which can affect the water resistance seals.
Fehlerbehebung
- Die Uhr läuft nicht: Prüfen Sie, ob die Krone vollständig eingedrückt ist. Falls ja, muss die Batterie möglicherweise ausgetauscht werden.
- Die Zeitangabe ist ungenau: Stellen Sie sicher, dass die Krone vollständig eingedrückt ist. Sollte die Zeit weiterhin ungenau sein, muss die Uhr möglicherweise gewartet werden.
- Date does not change: Manually advance the date to ensure it is not stuck. If the issue persists, consult a service center.
- Fogging inside the crystal: This may indicate a loss of water resistance. Avoid further water exposure and have the watch inspected by a technician immediately.
Technische Daten
| Modellname | MWA-300H |
| Modellnummer | MWA-300H-1AVCF |
| Anzeigetyp | Analog |
| Bewegung | Quarz |
| Wasserbeständigkeit | 100-Meter (330-Füße) |
| Gehäusematerial | Harz |
| Armbandmaterial | Harz |
| Kristallmaterial | Harz |
| Gehäusedurchmesser | 50.9 Millimeter |
| Gehäusedicke | 14.3 Millimeter |
| Bandbreite | 22 Millimeter |
| Akku-Typ | SR920SW (1 included) |
| Akkulaufzeit | Ungefähr 3 Jahre |
| Zusätzliche Merkmale | Chronograph, Date Display, Luminous Hands |
Garantieinformationen
This Casio watch comes with a limited manufacturer's warranty. The warranty covers defects in materials and workmanship under normal use. Please refer to the warranty card included with your purchase for specific terms, conditions, and duration. Keep your proof of purchase for warranty claims.
The warranty typically does not cover damage resulting from improper handling, accidents, unauthorized repairs, or normal wear and tear of the case, band, or crystal.
Kundenservice
For further assistance, technical support, or service inquiries, please contact Casio customer service or visit the official Casio webWebsite.
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