Seiko 7D56 Manual - Page 11

English English ✽ To charge the rechargeable battery efficiently, swing the watch from side to side rhythmically at a rate of twice a second, making an arc of about 20 cm. ✽ No additional benefit is obtained by swinging the watch more quickly or with greater vigor. ✽ When the electrical energy stored in the rechargeable battery is completely depleted after the watch is left untouched for a long time, the watch requires at least 450 swings to generate power to resume the normal operational movement. 2. It is recommended that the watch be swung further until it can reserve enough power to run the watch for approximately one day. As a guideline, 200 swings will generate the power to run the watch for approximately one day. POWER RESERVE GUIDELINES FOR THE RECHARGEABLE BATTERY ● Wearing the watch continuously for 12 hours will accumulate power to run the watch for approximately one and a half additional days. ✽ As a general guideline, if you wear the watch every day for 12 hours over a period of a week, the power to run the watch for approximately ten days will be additionally secured. If the watch enters the power save mode, this amount of energy will keep the watch running for approximately one month and a half. POWER SOURCE (RECHARGEABLE BATTERY) This watch requires no periodic battery replacement as it is powered by the exclusive rechargeable battery, which is completely different from conventional batteries for watches. This exclusive rechargeable battery is an environmentally friendly, clean energy storage device. CAUTION Never install a silver oxide battery for conventional watches in place of the rechargeable battery, which can generate heat that can cause bursting or ignition. NOTES ON OVERHAUL The watch is a precision device. If the parts run short of oil or get worn out, the watch may stop its operation or lose time. We recommend you have the watch overhauled periodically to keep it running accurately. 20 21