User manual CITIZEN CALIBER NO 7878

[. . . ] TIME REQUIRED FOR CHARGE" for charging time reference. How to use the solar power watch well To use this watch comfortably, make sure that the watch is always recharged before it stops. There is concern of overcharging this watch. (Overcharging Prevention Feature) we recommend that you recharge the watch every day. 3. [. . . ] When you charge the watch by an incandescent lamp, take a distance about 50cm from the light source to prevent extremely high temperature. TIME REQUIRED FOR CHARGE Time required for recharge may vary according to the design (colour of the dial, etc. ) and operating environment. The following table will serve you as a rough reference. *The recharging time is the time when the watch is continuously exposed to radiation. 10. USING FOR DIVER'S WATCHES Using the register ring Elapsed time measurement Adjust the triangle mark ( ) to the current minute indication when you start diving. You can easily read the elapsed time on the scale of the register ring while diving. Example The figure shows 10 minutes have elapsed after the dive began. The ring rotates in a counter-clockwise direction only. Calculating the remaining time Align the register ring zero mark ( ) with the target time and use the ring's calibrations to calculate the remaining time. Screw locked crown This product is equipped with a screw lock crown to avoid water penetration and damage to the mechanism of the watch. Confirm that the crown is tightly locked for daily use and for diving. Check points at the diving site Before the dive · If the crown is tightly locked. · If there are any scratches or cracks on the wrist band or on the glass. · If the watch is securely linked with the wrist band. · If the register ring rotates correctly. (Normally it is possible to rotate it only in a counter clockwise direction) · If the time and date settings are correct. · If the second hand movement is correct. Recharge the secondary battery if the second hand does not advance in 1 second interval movement. While diving · Never operate the crown in water. · Be careful not to hit a rock or hard material with the watch. After the dive · Wash the watch with fresh water with the crown tightly locked. Wash away any seawater, mud and/or sand. [. . . ] Metal watch bands should be washed periodically to keep them looking beautiful at all times. Metal watchbands are usually washed with a brush in mild, soapy water and well wiped with a soft, absorbent cloth to make sure all water is removed. Pay attention to prevent any water from getting inside your watch when the band is washed. 7. Periodic inspection Getting your watch checked once in two or three years is recommended to ensure long use and trouble-free operation. [. . . ]