Casio G-Shock G7900A-4 Digital Sport Watch User Manual

Introduzione

This manual provides detailed instructions for the operation and maintenance of your Casio G-Shock G7900A-4 Digital Sport Watch. Designed for durability and functionality, this timepiece offers advanced features including tide and moon data, world time, multiple alarms, and a stopwatch, all within a shock-resistant and water-resistant casing.

Davanti view of the Casio G-Shock G7900A-4 Digital Sport Watch, showcasing its red resin case and digital display with time, date, and tide/moon indicators.

Caratteristiche principali

• Resistente agli urti: Progettato per resistere a urti e vibrazioni.
• Resistente all'acqua fino a 200 m: Adatto per attività marine professionali e sport acquatici di superficie impegnativi.
• Grafico delle maree: Displays tide levels for specific dates and times.
• Moon Data: Shows moon age and phase graph.
• Low Temperature Resistant LCD: Operates reliably in temperatures down to -20°C (-4°F).
• Auto EL Backlight with Afterglow: Fornisce illuminazione per una facile lettura in condizioni di scarsa illuminazione.
• Avviso flash: Lampeggia con cicalino per allarmi, hourly time signal, and timer functions.
• Ora mondiale: Displays time for 29 time zones (48 cities).
• Multi-function Alarms: Four daily alarms and one snooze alarm.
• Conto alla rovescia: Measuring unit of 1 second, range up to 24 hours.
• Cronometro: 1/100 second stopwatch with measuring capacity up to 999 hours.
• Formati 12/24 ore: Selectable time display format.
• Calendario automatico: Preprogrammato fino all'anno 2099.

Impostare

Informazioni sulla batteria

The G7900A-4 watch uses one CR2025 lithium battery. The approximate battery life is 2 years under normal usage conditions. When the display becomes dim or the backlight function weakens, it may be time to replace the battery. Battery replacement should ideally be performed by a qualified technician to ensure water resistance integrity.

Impostazione dell'ora iniziale

1. In modalità cronometraggio, tenere premuto il tasto REGOLARE finché il codice della città non inizia a lampeggiare. Questo indica la modalità di impostazione.
2. Utilizzare il DIVIDI/RESET E AVVIO/ARRESTO pulsanti per selezionare il codice della tua città di residenza.
3. Premere il tasto MODALITÀ button to cycle through the settings: DST (Daylight Saving Time), 12/24-hour format, seconds, hour, minute, year, month, and day.
4. Utilizzare il DIVIDI/RESET E AVVIO/ARRESTO pulsanti per regolare il valore lampeggiante.
5. Dopo aver impostato tutti i valori desiderati, premere il tasto REGOLARE pulsante per uscire dalla modalità di impostazione.

Tide and Moon Data Setup

To ensure accurate tide and moon data, you must input your specific location's longitude, lunitidal interval, and UTC offset.

1. Enter the Tide/Moon Data Mode by pressing the MODALITÀ button until "TIDE" or "MOON" appears.
2. Premere e tenere premuto il tasto REGOLARE button until the longitude setting starts to flash.
3. Utilizzare il DIVIDI/RESET E AVVIO/ARRESTO buttons to adjust the longitude.
4. Premere MODALITÀ to move to the lunitidal interval setting. Adjust this value using the DIVIDI/RESET E AVVIO/ARRESTO buttons. Consult local tide charts or online resources for precise lunitidal interval data for your location.
5. Premere MODALITÀ again to set the UTC offset if necessary.
6. Premere REGOLARE per salvare le impostazioni ed uscire.

Lato view of the Casio G-Shock G7900A-4, showing the robust case design and button placement.

Funzionamento dell'orologio

Funzioni dei pulsanti

• REGOLA (in alto a sinistra): Utilizzato per entrare e uscire dalle modalità di impostazione e per confermare le impostazioni.
• MODALITÀ (in basso a sinistra): Cycles through the watch's various modes (Timekeeping, Tide/Moon Data, Stopwatch 1, Stopwatch 2, Countdown Timer, Alarm, World Time).
• SPLIT/RESET (Top Right): Used for adjusting values upwards in setting modes, and for split/reset functions in stopwatch mode.
• START/STOP (Bottom Right): Used for adjusting values downwards in setting modes, and for start/stop functions in stopwatch and timer modes.
• ILLUMINATOR (Front Center): Attiva la retroilluminazione EL.

Modalità finiteview

Modalità di indicazione dell'ora:

Visualizza l'ora, la data e il giorno della settimana correnti. Questa è la modalità predefinita.

Modalità dati marea/luna:

Shows the current moon phase and tide graph based on your configured location data. The moon phase indicator shows the current phase as viewed from the Northern Hemisphere. The tide graph has six segments indicating tide level.

Stopwatch Mode (ST1 & ST2):

Two independent 1/100 second stopwatches. Measuring capacity is 999 hours, 59 minutes, 59.99 seconds. Features include elapsed time, split time, and 1st-2nd place times. ST1 also has a 5-second auto-start feature.

Modalità conto alla rovescia:

A countdown timer with a measuring unit of 1 second and a range of 24 hours. Features auto-repeat and a progress beeper.

Modalità sveglia:

Set up to four independent multi-function alarms and one snooze alarm. An hourly time signal can also be activated.

Modalità ora mondiale:

View the current time in 29 time zones (48 cities). Daylight Saving Time (DST) can be toggled on or off for each city.

Illuminazione

Premere il tasto ILLUMINATORE button to activate the EL backlight. The watch also features an Auto EL Backlight, which can be enabled to automatically illuminate the display with a slight angle movement of the wrist. Flash Alert causes the display to flash in conjunction with alarm sounds or timer completion.

Manutenzione

Resistenza all'acqua

The Casio G-Shock G7900A-4 is water resistant to 200 meters (660 feet). This makes it suitable for professional marine activity and serious surface water sports. It is not recommended for scuba diving. To maintain water resistance, ensure all buttons are not operated while the watch is submerged. Avoid exposing the watch to hot water, steam, or chemicals (like those found in soaps or shampoos), as these can degrade the seals over time.

Posteriore view of the Casio G-Shock G7900A-4, showing the stainless steel case back with "G-SHOCK RESIST" engraving.

Assistenza generale

• Clean the watch regularly with a soft, dry cloth. For stubborn dirt, use a mild soap solution and rinse thoroughly, then dry.
• Evitare di esporre l'orologio a temperature estreme, alla luce solare diretta per periodi prolungati o a forti campi magnetici.
• The resin band and bezel can be maintained using products designed for resin protection, such as Vinylex Quick Wipes, to prevent hardening or cracking over time.

Risoluzione dei problemi

Inaccurate Tide Graph Reading:

If your tide graph appears inaccurate after setting the lunitidal interval, try adding 7 hours to your calculated lunitidal interval value during setup. This adjustment has been noted to improve accuracy for some users.

World Time Discrepancies:

If certain World Time cities show an incorrect time, verify that the Daylight Saving Time (DST) setting is correctly configured for that specific city. Some regions may have unique DST rules or may not observe DST at all.

Dim Display or Weak Backlight:

This typically indicates a low battery. Replace the CR2025 battery. If the issue persists after battery replacement, consult a service center.

Specifiche

A visual guide illustrating various watch case sizes for comparison.

Garanzia e supporto

Per informazioni sulla garanzia e sull'assistenza clienti, fare riferimento al sito ufficiale Casio website or the warranty card included with your purchase. Casio provides support for its products, and details can typically be found in the documentation accompanying the watch or by contacting Casio customer service directly.

Per ulteriori risorse e informazioni sul prodotto, visitare il Negozio Casio su Amazon.