1. Introducció
This manual provides detailed instructions for the operation and maintenance of your Casio Edifice Chronograph Black Dial Men's Watch, model EF-509L-1AVDF (ED285). This timepiece features a modern square case design, a 1/20-second chronograph, 100-meter water resistance, and a date display.

Figura 1: Davant view of the Casio Edifice Chronograph Watch EF-509L-1AVDF. The watch features a black square dial with three sub-dials for chronograph functions and a date display at the 3 o'clock position. It has a silver-toned stainless steel case and a black leather band with white stitching.
Característiques principals:
- Marca: Black, Square shape, Mineral glass.
- Banda: Black, Leather material.
- Moviment: Quartz, Analog display.
- Resistència a l'aigua: 100 metres.
- Cronògraf: 1/20-second accuracy.
- Visualització de la data: Situat a la posició de les 3 en punt.
2. Configuració
Configuració de l'hora:
- Estireu la corona fins a la segona posició de clic. La maneta dels segons s'aturarà.
- Rotate the crown to set the hour and minute hands. Ensure the AM/PM is correctly set if your watch has a 24-hour indicator or if setting the date.
- Empenyeu la corona de nou a la posició normal. La maneta dels segons reprendrà el moviment.
Configuració de la data:
- Estireu la corona fins al primer clic.
- Gireu la corona per ajustar la data.
- Torneu a empènyer la corona a la posició normal.
Nota: Avoid setting the date between 9:00 PM and 1:00 AM as this may interfere with the automatic date change mechanism.
3. Funcionament del cronògraf
La funció de cronògraf permet mesurar amb precisió el temps transcorregut.
Mesurament del temps transcorregut:
- Press button 'A' (top right button) to start the chronograph. The chronograph second hand will begin moving.
- Press button 'A' again to stop the chronograph. The elapsed time will be indicated by the chronograph hands.
- Press button 'B' (bottom right button) to reset the chronograph. All chronograph hands will return to their 12 o'clock (zero) positions.
Mesurament del temps fraccionat:
- Press button 'A' to start the chronograph.
- Press button 'B' to measure a split time. The chronograph hands will stop to indicate the split time, while internal timing continues.
- Press button 'B' again to release the split time. The chronograph hands will quickly advance to indicate the current elapsed time.
- Press button 'A' to stop the chronograph.
- Press button 'B' to reset the chronograph.
4. Manteniment
Neteja:
Wipe the watch case and band with a soft, dry cloth to remove dirt and moisture. For the leather band, avoid excessive moisture and harsh chemicals.
Resistència a l'aigua:
This watch is water resistant to 100 meters. This means it is suitable for everyday use and can withstand splashes, rain, and brief immersion in water. It is generally suitable for swimming and snorkeling, but not for diving. Do not operate the crown or buttons while the watch is wet or submerged.
Substitució de la bateria:
The watch is powered by a quartz movement, which requires a battery. When the watch stops or the second hand moves erratically, it may be time for a battery replacement. It is recommended to have the battery replaced by an authorized Casio service center to ensure proper sealing and water resistance.
Cura de la corretja de cuir:
Leather bands can deteriorate over time due to exposure to moisture, sweat, and direct sunlight. To prolong the life of your leather band, avoid prolonged exposure to water and extreme temperatures. Clean with a soft, damp drap i deixar assecar a l'aire.
5. Solució De Problemes
- El rellotge no funciona: Check if the crown is pushed in completely. If it is, the battery may need replacement.
- Date does not change at midnight: Ensure the time is set correctly for AM/PM. The date changes around midnight. If the watch is set to PM during the AM hours, the date will change at noon instead.
- Chronograph hands do not reset to zero: This may require a chronograph hand position adjustment. Consult an authorized service center or refer to advanced manual for specific adjustment procedures.
- Condensació dins del rellotge: This indicates a potential issue with the watch's seal. Avoid further exposure to water and have the watch inspected by an authorized service center immediately.
6. Especificacions
| Característica | Detall |
|---|---|
| Número de model | EF-509L-1AVDF (ED285) |
| Diàmetre de la caixa | 39 Mil·límetres |
| Amplada de banda | 36 Mil·límetres |
| Tipus de material de la banda | Cuir |
| Color de banda | Negre |
| Color de l'esfera | Negre |
| Tipus de moviment del rellotge | Quars |
| Resistència a l'aigua | 100 metres |
| Pes de l'article | 500 g |
| Dimensions del paquet | 10 x 10 x 10 cm |
| Fabricant | Casio |
| Data de primera disponibilitat | 19 de juliol de 2013 |
7. Garantia i Suport
Informació de la garantia:
This Casio watch comes with a 2 anys de garantia domèstica provided by the manufacturer. Please retain your purchase receipt as proof of purchase for warranty claims. The warranty covers manufacturing defects under normal use.
Atenció al client:
For technical assistance, service, or warranty claims, please contact Casio customer support or visit an authorized Casio service center. You can find contact information and service center locations on the official Casio weblloc: www.casio.com





