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A special Eco-Drive energy storage cell is used to store the electricity from the converted light energy. The high quality of the cell precludes it from being affected from the regular charge/discharge cycle as with an ordinary battery. With normal care and exposure to light, the owner can be assured of a lifetime of reliable and trouble free power. As an added benefit to the environment, the energy cell contains none of the chemicals used in ordinary watch batteries.
Eco Drive timepieces thrive on and need light. The most important thing is to always make sure that the watches are dial (face) up in bright light. The best position in the display case for your Eco Drive watches is in the middle of the top shelf. It is equally important that they not be displayed on the second or third shelf down or in a wall case where there is insufficient light to keep them charged.
The Energy Cell is referred to as a “secondary battery” since the primary power is from light that is converted to electricity. There is really only one energy storage cell in your Eco-Drive watch. Unlike Eco-Drive watches, most quartz watches use a silver oxide battery technically referred to as a primary power source or battery which is used until depleted and then discarded.
The Eco-Drive Energy Cell will last a lifetime of use.
It means that the reserve power is getting low and the energy cell needs to be fully recharged by exposing it to light for a period of time outlined in your owner’s manual. This may also occur after fully recharging your watch after a complete discharge of the energy cell. If you have fully charged your watch and the second hand continues to move in two second intervals, you need to do an all reset of the watch. For simple analog models, pull the crown out to the time setting position for 30 seconds, then return the crown to the closed position next to the case, then set the time. For multi-function models, please refer to your owners manual.
In normal use, the watch displays the time and the sweep-second hand moves in one second intervals. A very important feature of Eco-Drive is the Low Charge Warning Mode which as a result of low energy cell voltage causes the second hand to jump two seconds at a time (while still keeping correct time). When this signal is seen, the watch should be exposed to bright light following the recharging guidelines shown in its instruction manual. There are two exceptions to this signal: the Eco-Drive two hand models and the Chronograph models.
It means that your watch has stopped and it needs to be charged up and set to the correct time. See Time Reset Advisory following.
A second important feature, Time Reset Advisory, warns that the watch has stopped completely and then been exposed to enough light to start running again. The time shown would likely be incorrect and need to be reset after recharging the watch sufficiently. To indicate this warning, the sweep second hand movement alternates between two, one second jumps and a two second jump (hitch movement) with the following two exceptions: the Eco-Drive two hand models and the Eco-Drive Chronograph.
After the watch has stopped and been restarted by exposure to bright light, it will remain in the Time Reset Warning (hitch movement) mode until one or the other of two things happen: <br>First, if the watch is set to the correct time after partial recharging, the hitch movement will change to a two step movement indicating that more charging is needed. While charging is continued, the watch will keep correct time and after sufficient charging, will go back to the regular one second step by itself.
Second, if the watch is not set until after it is charged up to a sufficient level where the circuit signals the watch to start the one second step again, it will stay in the Time Reset Advisory (hitch) mode. However, after it has reached the above charge level, and the time on the watch is set, it will go back to the normal one second step movement.
The amount of charging time, under varying light conditions, to go from a stopped watch to a one second step is shown in each instruction book.
When the watch has received the charging time recommended in its instruction book, the all reset has been performed and the time has been set, the irregular movement of the hands will stop The sweep second hand on the Three Hand models and on the Chronograph will then return to the one second step and the minute hand on the Two Hand models will return to the normal 1/3 minute stepping operation. Reminder: the recharging time, shown in each instruction book will differ depending on the calibre number.
The ALL RESET procedure varies by model. For simple analog models, pull the crown out to the time setting position, leave for 30 seconds, then return to the closed position next to the case. For multifunction and perpetual calendar models, refer to your owners manual for appropriate procedures.
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