Seiko 7B24 Manual - Page 31

Solar Charging Function ■ The indication time for charging the watch Standard charging time Illumination Light （LUX） source Condition （Example） Time required for fully Time required for charging the watch to Time required for charging charging the watch start moving at one- second intervals ★ the watch to run for one day 500 Incandescent light 60W 60cm － － 5 hours 700 Fluorescent light General offices － － 3 hours 1,000 Fluorescent light 30W 70cm － 120 hours 2 hours 3,000 Fluorescent light 30W 20cm 90 hours 30 hours 30 minutes 5,000 Fluorescent light 30W 12cm 70 hours 24 hours 24 minutes 10,000 Fluorescent light 30W 5cm 25 hours 8 hours 9 minutes 10,000 Sunlight Cloudy day 25 hours 8 hours 9 minutes 100,000 Sunlight Sunny day（Under the direct sunlight on a summer day） 8 hours 2 hours 3 minutes ★ T he figures in the table above refer to the time required to charge the stopped watch by exposure to light until the watch moves at steady one-second intervals. Even if the watch is partially charged for a period shorter than the time provided in the above table, it will resume one-second interval movement, however, the one-second interval movement will change to two-second interval movement shortly. To avoid this and charge the watch to a sufficient level, use the charging time mentioned above as a measure. ※ The required charging time slightly varies depending on the model of the watch. ※ The movement of the second hand checking the charging status → page 92 111