Seiko 5K25 User Guide - Page 9

English NOTES FOR USING THE WATCH HOW TO CHARGE AND START THE WATCH CAUTION Caution for charging q When charging the watch, do not place it too close to a photoflash bulb, spotlight, incandescent light or other light sources as the watch temperature may become extremely high, causing damage to the parts inside the watch. q When exposing the watch to sunlight to charge it, do not leave it on the dashboard of a car, etc. for a long time, as the watch temperature may become extremely high. q While charging the watch, make sure the watch temperature does not exceed 60 C. q When the instant-start function is activated by exposing the watch to light, the second hand starts moving at 2-second intervals immediately, but the energy stored in the rechargeable battery is not sufficient. If the watch is turned away from the light source, it may stop operating. Therefore, please continue to charge the watch. q It is not necessary to charge the watch fully. It is important, however, to charge the watch sufficiently, especially in case of initial charge. NOTE ON POWER SUPPLY CAUTION q Never insert a conventional silver oxide battery in your watch as it may explode, generate an intense heat or catch fire. The watch is so designed that even if a conventional battery is installed in the watch, the watch will not operate. 9