Seiko 4J52 Manual - Page 13

English Lumibrite If your watch has Lumibrite Lumibrite is a luminous paint that is completely harmless to human beings and the natural environment; containing no noxious materials such as radioactive substance. Lumibrite is a newly-developed luminous paint that absorbs light energy of the sunlight and lighting apparatus in a short time and stores it to emit light in the dark. For example, if exposed to a light of more than 500 lux for approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours. Please note, however, Lumibrite emits the light it stores, the luminance level of the light decreases gradually over time. The duration of the emitted light may also differ slightly depending on such factors as the brightness of the place where the watch is exposed to light and the distance from the light source to the watch. ※ In general, when you enter a dark place from a bright environment, your eye cannot adapt to the change in light levels quickly. At first, you can hardly see anything, but as time passes, your vision gradually improves. (Dark adaptation of the human eye) Condition Illumination Sunlight Fine weather 100,000 lux Cloudy weather 10,000 lux Indoor (Window-side during daytime) Fine weather more than 3,000 lux Cloudy weather 1,000 to 3,000 lux Rainy weather less than 1,000 lux Lighting apparatus (40-watt daylight fluorescent light) Distance to the watch: 1 m 1,000 lux Distance to the 500 lux watch: 3 m (average room luminance) Distance to the watch: 4 m 250 lux Troubleshooting Troubles Possible Causes Solutions The watch stops operating. The battery runs down. Consult the retailer from whom the watch was purchased. The watch has been left in extremely high or low temperatures for a long time. Normal accuracy will resume when the watch returns to normal temperature. Readjust the time. The watch temporarily gains/ loses time. The watch was brought into close contact with a magnetic object. By distancing magnetism, accuracy is recovered. Readjust the time. If accuracy is not recovered, consult the retailer from whom the watch was purchased. The watch was dropped, worn Readjust the time. If accuracy while playing active sports, hit is not recovered, consult the against hard surfaces, or retailer from whom the watch exposed to strong vibrations. was purchased. The second hand moves at two-second intervals. The battery nears its end. Consult the retailer from whom the watch was purchased. The date changes A.m./p.m. is not correctly Advance the hour hand for 12 during daytime. set. hours and reset the time and date. Blur in the display persists. Small amount of water has got inside the watch due to deterioration of the gasket, etc. Consult the retailer from whom the watch was purchased. ※ For the solution of troubles other than above, contact the retailer from whom the watch was purchased. 22 23