Seiko SNJ031 Owner Manual - Page 13

TO PRESERVE THE QUALITY OF YOUR WATCH TO PRESERVE THE QUALITY OF YOUR WATCH Lumibrite If your watch has Lumibrite Lumibrite is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses 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, that, as 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 coming from a place that is bright to a place that is dark, it takes human eyes some time to adapt to the darkness making it difficult to see objects initially. (Dark adaptation) * Lumibrite is luminous paint that stores and emits light, which is harmless to human beings and the environment, containing no toxic materials such as radioactive substances. 6 Condition Illumination Sunlight Fine weather Cloudy weather 100,000 lux 10,000 lux Indoor (Window-side during daytime) Fine weather Cloudy weather Rainy weather more than 3,000 lux 1,000 to 3,000 lux less than 1,000 lux Lighting apparatus (40-watt daylight fluorescent light) Distance to the watch: 1 m Distance to the watch: 3 m Distance to the watch: 4 m 1,000 lux 500 lux (average room luminance) 250 lux EN 44 * Overcharge prevention function When the secondary battery is fully charged, the overcharge prevention function is automatically activated to avoid further charging. There is no need to worry about damage caused by overcharging no matter how much the secondary battery is charged in excess of the "time required for fully charging the watch." * For the required time to fully charge the battery, see "Guide to charging times" → P. 38. b WARNING ■ Notes on charging the watch • When charging the watch, do not place the watch in close proximity to an intense light source such as lighting equipment for photography, spotlights or incandescent lights, 6 as the watch may be excessively heated resulting in damage to its internal parts. • When charging the watch by exposure to direct sunlight, avoid places that easily reach high temperatures, such as a car dashboard. • Always keep the watch temperature under 60°C. EN 46 Power Source The battery used in this watch is a special secondary battery, which is different from ordinary batteries. Unlike an ordinary silver oxide battery, the secondary battery does not require periodic replacement. The capacity or charging efficiency may gradually lower due to long-term use or operating environment. In addition, long-term use may shorten the charge duration due to wear, contamination, lubricant deterioration of mechanical parts, etc. Request repair when the performance lowers. b WARNING 6 ■ Notes on replacing the secondary battery • Do not remove the secondary battery from the watch. Replacement of the secondary battery requires professional knowledge and skill. Please ask the retailer from whom the watch was purchased for replacement of the secondary battery. • Installation of an ordinary silver oxide battery can generate heat that can cause bursting and ignition. EN 45 Magnetic resistant performance Affected by nearby magnetism, a watch may temporarily gain or lose time or stop operating. Diver's watches feature magnetic resistant performance which is equivalent to or above JIS Class 1. b DANGER Indication on the case back Condition of use No indication Keep the watch more than 5 cm away from magnetic products. (JIS level-1 standard) Keep the watch more than 1 cm away from magnetic products. (JIS level-2 standard) If the watch becomes magnetized and its accuracy deteriorates to an extent exceeding the specified rate 6 under normal use, the watch needs to be demagnetized. In this case, you will be charged for demagnetization and accuracy readjustment even if it happens within the guarantee period. The reason why a watch is affected by magnetism The built-in motor is provided with a magnet, which may be influenced by a strong external magnetic field. EN 47 TO PRESERVE THE QUALITY OF YOUR WATCH TO PRESERVE THE QUALITY OF YOUR WATCH