Introducció
This manual provides detailed instructions for the operation and maintenance of your Casio A158WA Series Digital Watch. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your timepiece. The Casio A158WA is a classic digital watch featuring timekeeping, daily alarm, stopwatch, and an LED backlight.

Image: Casio A158WA Series Digital Watch. This image displays the watch face, showing the digital time, day, and date, along with the function labels for the buttons.
Funcions del botó
Your Casio A158WA watch has four buttons, typically located on the sides of the watch case. Refer to the diagram below for their general functions:
- Top Left (LIGHT/LAP-RESET): Activates the LED backlight; used for lap/reset in stopwatch mode.
- Bottom Left (MODE): Cycles through the watch's modes (Timekeeping, Alarm, Stopwatch).
- Top Right (START-STOP/12-24H): Used to start/stop the stopwatch; toggles between 12-hour and 24-hour time formats.
- Bottom Right (ADJUST/SET): Used to adjust settings within each mode (e.g., setting time, alarm).
Note: Button labels may vary slightly on the watch face, but their positions and primary functions are consistent.
Configuració
Configuració de l'hora i la data
- En el mode de mesura del temps, premeu la tecla MODE button until the seconds begin to flash. This indicates the setting mode.
- Premeu el botó ADJUST/SET per anar canviant pels paràmetres: Segons → Hora → Minut → Mes → Data → Dia de la setmana.
- Mentre un paràmetre parpelleja, utilitzeu el botó START-STOP/12-24H botó per augmentar el valor. Mantingueu premut el botó per canviar els valors ràpidament.
- Un cop tots els paràmetres siguin correctes, premeu el botó MODE button to exit the setting mode and return to normal timekeeping.
Ajust de la polsera
The stainless steel bracelet can be adjusted to fit your wrist. This typically involves moving the clasp mechanism along the bracelet or removing links. For precise adjustment, it is recommended to consult a jeweler or watch repair professional. If adjusting yourself, use a small, flat-head tool to lift the clasp's locking plate and slide it to the desired position, then press the plate back down to secure it.
Modes de funcionament
Mode de cronometratge
This is the default mode, displaying the current time (hour, minute, second), day, and date. From any other mode, press the MODE premeu el botó repetidament fins que es mostri l'hora actual.
- Format de 12/24 hores: En el mode de mesura del temps, premeu la tecla START-STOP/12-24H per alternar entre els formats de 12 hores (amb l'indicador 'PM') i 24 hores.
- Llum LED: Premeu el botó LIGHT/LAP-RESET button to illuminate the display for a few seconds in low-light conditions.
Mode d'alarma
Per configurar l'alarma diària:
- Des del mode de mesura del temps, premeu la tecla MODE Premeu el botó una vegada per entrar al mode d'alarma. Es mostrarà l'hora de l'alarma.
- Premeu el botó ADJUST/SET botó. Els dígits de l'hora parpellejaran.
- Utilitza el START-STOP/12-24H button to set the desired hour.
- Premeu el botó ADJUST/SET button again to select the minute digits, then use the START-STOP/12-24H botó per configurar els minuts desitjats.
- Premeu el botó MODE botó per sortir de la configuració de l'alarma.
- Per activar/desactivar l'alarma, en el mode d'alarma, premeu la tecla START-STOP/12-24H button. An alarm indicator will appear on the display when the alarm is active.
Mode de cronòmetre
The stopwatch measures elapsed time, split times, and two finishes. It has a capacity of 59 minutes, 59.99 seconds.
- Des del mode de mesura del temps, premeu la tecla MODE button twice to enter Stopwatch Mode. The display will show "00'00"00".
- Premeu el botó START-STOP/12-24H botó per iniciar el cronòmetre.
- Premeu el botó START-STOP/12-24H de nou per aturar el cronòmetre.
- Premeu el botó LIGHT/LAP-RESET button to reset the stopwatch to "00'00"00".
- Temps parcial: While the stopwatch is running, press the LIGHT/LAP-RESET button to display a split time. The stopwatch continues to run internally. Press LIGHT/LAP-RESET again to return to elapsed time display.
- Two Finishes: Start the stopwatch. Press LIGHT/LAP-RESET when the first runner finishes to record their time. Press START-STOP/12-24H when the second runner finishes. Press LIGHT/LAP-RESET to display the second runner's time. Press LIGHT/LAP-RESET de nou per reiniciar.
Manteniment
Informació de la bateria
Your Casio A158WA watch is equipped with a CR2016 Lithium Metal battery, designed to last approximately 7 years under normal usage conditions. When the display becomes dim or the light function weakens, it may be an indication that the battery needs replacement. Battery replacement should ideally be performed by a qualified watch technician to ensure proper sealing and water resistance.
Resistència a l'aigua
The watch is water-resistant to 30 meters (3 ATM / 99 feet). This means it is suitable for daily use and can withstand splashes or brief immersion in water. It is no suitable for showering, swimming, diving, or any water sports where it would be subjected to continuous water pressure or submersion. Do not operate buttons while the watch is wet.
Neteja
Per netejar el rellotge, netegeu-lo amb un drap suau i sec. Per a la brutícia resistent, netegeu-lo lleugerament.amp cloth can be used, followed by a dry cloth. Avoid using chemical cleaners, solvents, or abrasive materials, as these can damage the watch's finish or internal components.
Resolució de problemes
| Problema | Solució |
|---|---|
| La pantalla està en blanc o tènue. | Pot ser que la bateria estigui baixa o esgotada. Substitueix la bateria CR2016. |
| L'hora és incorrecta. | Re-set the time and date following the "Setting the Time and Date" instructions. Ensure 12/24-hour format is correct. |
| L'alarma no sona. | Ensure the alarm is turned ON (alarm indicator visible on display). Check if the battery is low. |
| Els botons no responen. | The watch may be in a specific setting mode. Try pressing the MODE button to return to Timekeeping Mode. If wet, ensure the watch is dry before operating buttons. |
Especificacions
- Model: A158WA Series (e.g., A158WEA-9CF)
- Moviment: Japanese Quartz with Digital Display
- Material de la caixa: Resina
- Material de la banda: Acer inoxidable
- Resistència a l'aigua: 30 Meters (3 ATM / 99 Feet)
- Bateria: CR2016 Lithium Metal (approx. 7-year life)
- Funcions: Timekeeping (Hour, Minute, Second, PM, Date, Day), Daily Alarm, 1/100 Second Stopwatch, LED Backlight, 12/24-Hour Format
- Precisió: ± 30 segons al mes
- Pes: Aproximadament 3.21 unces
Garantia i Suport
Casio watches typically come with a manufacturer's warranty covering defects in materials and workmanship. Please refer to the warranty card included with your purchase for specific terms, conditions, and duration. For technical support, service, or warranty claims, please contact Casio customer service or visit the official Casio weblloc web. Conserveu el comprovant de compra per validar la garantia.
Per a més informació, podeu visitar el Botiga oficial de Casio a Amazon.





