Seiko 8F35 Manual - Page 17

English BATTERY CHANGE 8 Years The miniature battery which powers your watch should last approximately 8 years. However, because the battery is inserted at the factory to check the function and performance of the watch, its actual life once in your possession may be less than the specified period. When the battery expires, be sure to replace it as soon as possible to prevent any malfunction. For battery replacement, we recommend that you contact an AUTHORIZED SEIKO DEALER and request SEIKO CR2412 battery. * For safety's sake, the watch will also undergo a strict check at the time of battery change. In addition to battery change, water resistant quality of the watch is checked and the gasket will be replaced with a new one if necessary. Therefore, it will take approximately 10 days before the watch is returned to you, and the checking may be made at cost. * If the watch is left with the crown at the first or second click, if the calendar checking function is used frequently, and/or if the watch is left in temperatures outside the normal temperature range (5° C ~ 35° C or 41° F ~ 95° F) for a long time, the battery life may be less than the specified period. q Expected time for battery change • To show when the battery must be replaced, the expected time (month and year) for the first battery change is inscribed on the case back as shown in the illustration on the next page. • When replacing the battery, we recommend that you contact an AUTHORIZED SEIKO SERVICE CENTER. In that case, after every battery change, a new "q" mark will be inscribed on the case back at the position corresponding to the next battery change time. Be sure to check the mark before using your watch again. 17