Uvod
This manual provides essential information for the proper use and maintenance of your CASIO G-Shock GW-8900A-1JF watch. This timepiece combines G-Shock's renowned shock resistance with Tough Solar power and Multi-Band 6 atomic timekeeping for reliable and accurate performance. Please read this manual thoroughly to ensure optimal operation and longevity of your watch.
Ključne karakteristike
- Multi-Band Atomic Timekeeping: Automatically receives time calibration signals from six transmission stations around the world for accurate timekeeping.
- Snažna solarna energija: Converts light into power, eliminating the need for battery replacement.
- Otporan na udarce: Designed to withstand impacts and vibrations.
- Vodootpornost 200M: Suitable for swimming, showering, and water sports.
- Full Auto EL Backlight with Afterglow: Illuminates the display in low light conditions.
- Svjetsko vrijeme: Prikazuje trenutno vrijeme u većim gradovima i određenim područjima širom svijeta.
- Alarmi: Uključuje 4 dnevna alarma i 1 alarm za odgodu.
- HourlVremenski signal: An audible alert every hour on the hour.
- Štoperica 1/100 sekunde: Za mjerenje proteklog vremena.
- Tajmer odbrojavanja: Za mjerenje vremena događaja.
- Potpuni automatski kalendar: Unaprijed programirano do 2099. godine.
- 12/24-satni formati: Choose between standard and military time displays.
- Ton rada tipke Uključivanje/Isključivanje: Mogućnost isključivanja zvuka dugmadi.
- Indikator napunjenosti baterije: Prikazuje trenutni nivo napunjenosti.
- Funkcija uštede energije: Conserves power when the watch is left in the dark.
Podešavanje i početna konfiguracija
1. Početno punjenje
Your G-Shock GW-8900A-1JF is equipped with Tough Solar power. Before initial use, expose the watch face to bright light (sunlight or strong artificial light) for several hours to ensure it is sufficiently charged. A fully charged battery can last approximately 9 months without further light exposure under normal use, or up to 26 months with the power-saving function enabled in total darkness.

Slika: Front view of the CASIO G-Shock GW-8900A-1JF watch. The watch face features a digital display with time, date, and day indicators, surrounded by a robust black resin case and strap. The solar panel is integrated into the watch face.
2. Kalibracija vremena (atomsko mjerenje vremena)
The watch automatically receives time calibration signals. For optimal reception, place the watch near a window at night. Manual reception can also be initiated:
- U režimu mjerenja vremena, držite pritisnuto dugme NAPRIJED button for about two seconds until the current Home City code flashes.
- Pritisnite ADJUST button to cycle through settings until you reach the RCVD (Receive) setting.
- Pritisnite START/STOP button to initiate manual reception. The watch will attempt to receive the signal.
- Once reception is complete, the time will be adjusted automatically.
3. Postavljanje matičnog grada i vremenske zone
To manually set your Home City and adjust for daylight saving time (DST):
- U režimu mjerenja vremena, držite pritisnuto dugme ADJUST dugme dok pozivni broj grada ne počne treptati.
- Koristite REVERSE i NAPRIJED dugmad za odabir željenog koda matičnog grada.
- Pritisnite MODE button to cycle through other settings like DST, 12/24-hour format, year, month, day, hour, minute, and second.
- Koristite REVERSE i NAPRIJED dugmad za promjenu trepćuće vrijednosti.
- Pritisnite ADJUST da izađete iz ekrana za podešavanje.
Radni režimi
Pritisnite MODE dugme za ciklično prebacivanje između različitih načina rada:
- Način mjerenja vremena: Prikazuje trenutno vrijeme i datum.
- Način rada za svjetsko vrijeme: Displays the current time in 48 cities (31 time zones). Use REVERSE i NAPRIJED to view different city times.
- Način štoperice: Mjeri proteklo vrijeme. Pritisnite START/STOP za pokretanje/zaustavljanje, REVERSE za resetovanje.
- Način rada s odbrojavanjem vremena: Counts down from a preset time. Set the countdown time using ADJUST i REVERSE/NAPRIJED. Pritisnite START/STOP za početak.
- Način alarma: Set up to 5 independent daily alarms. Use REVERSE i NAPRIJED to select an alarm, then ADJUST da podesite vreme alarma.
EL Backlight Operation
Press the large front-mounted LIGHT button to illuminate the display. The backlight features an afterglow, remaining lit for a short period after the button is released.

Slika: Ugaona view of the CASIO G-Shock GW-8900A-1JF watch, highlighting the robust case and the various function buttons on the sides, including the large front-mounted light button.
Održavanje
Punjenje sata
To maintain optimal battery charge, expose the watch face to light regularly. Avoid prolonged storage in dark places. The battery power indicator will show the current charge level. If the indicator shows a low charge, place the watch in a bright area.
Otpornost na vodu
This watch is 200-meter water resistant. This means it is suitable for recreational scuba diving, swimming, snorkeling, and other water sports. Do not operate buttons while the watch is submerged in water or wet.

Image: The CASIO G-Shock GW-8900A-1JF watch partially submerged in water, demonstrating its 200M water resistance. Water droplets are visible around the watch.
Čišćenje
Wipe the watch with a soft, dry cloth. If it becomes dirty, use a soft cloth dampOperite vodom i blagim neutralnim deterdžentom, a zatim obrišite suhom krpom. Izbjegavajte upotrebu hlapljivih sredstava poput razrjeđivača ili benzina, jer mogu oštetiti komponente smole.
Rješavanje problema
- Vrijeme je netačno ili se ne sinhronizuje: Ensure the watch is exposed to light for charging. Try manual time signal reception, especially near a window at night. Verify your Home City setting is correct.
- Ekran je taman ili prazan: The watch may be in Power Saving mode or the battery charge is low. Expose the watch to bright light.
- Dugmad ne reagiraju: Ensure the watch is not in a mode that locks buttons (e.g., some settings modes). If submerged, wait until dry before operating buttons.
Specifikacije
| Broj modela | GW-8900A-1JF |
| Dimenzije | 2.07 x 0.64 x 2.17 inča |
| Težina | 2.6 unce |
| Otpornost na vodu | 200 metara (20 bankomata) |
| Izvor napajanja | Tough Solar (punjiva solarna baterija) |
| Trajanje baterije (približno) | 9 months on full charge (without light exposure), 26 months with Power Saving function. |
| Signal za kalibraciju vremena | Multi-Band 6 (Automatic reception up to 6 times a day) |
Zvanični video proizvoda
Video: Zvanična video prezentacija proizvodaasing the CASIO G-Shock GW-8900A-1JF watch, highlighting its design, features, and durability. This video provides a dynamic view of the watch from various angles.
Garancija i podrška
For warranty information and customer support, please refer to the warranty card included with your purchase or visit the official CASIO G-Shock webSačuvajte dokaz o kupovini za eventualne reklamacije.





