User manual SEIKO 3M21

[. . . ] Unlike mechanical watches or conventional quartz watches, it requires no windup springs or batteries. SEIKO KINETIC® is the most sophisticated and prestigious new technological breakthrough in the history of watchmaking. 6 English CONTENTS Page FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DISPLAY AND CROWN OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOW TO CHARGE AND START THE WATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 5M43) Time setting HOW TO CHARGE AND START THE WATCH When using the watch for the first time after it is purchased, be sure to charge the capacitor sufficiently by swinging the watch from side to side, and then put it on. English 11 1. Swing the watch from side to side rhythmically at a rate of twice a second in the same manner as you would swing a mechanical automatic winding watch. After the watch is swung about 100 times, the second hand starts moving at onesecond intervals. * It is not necessary to charge the capacitor fully before you wear the watch. While the watch is on your arm, the Automatic Power Generator will ensure constant operation. * Even if the watch is worn on your arm, it will not be charged while your arm is not in motion. To charge the capacitor efficiently, swing the watch from side to side, making an arc of about 20 cm. No additional benefit is obtained by swinging the watch more quickly or with greater vigor. When the watch is swung, the oscillating weight in the generating system rotates to drive the mechanism. Provided with a quick-start function, the watch may start operating after it is swung several times. For details, see "QUICK-START FUNCTION" on page 19. NUMBER OF SWINGS AND POWER RESERVE · Cal. When the second hand moves at two-second intervals, the power reserve is very low and the indicator does not function. See the next section, which explains the Energy Depletion Forewarning Function. Immediately after the watch is swung to charge the capacitor, the second hand may not properly indicate the power reserve. Precaution on see-through case-back models: If your watch has a glass case back, do not expose the case back to strong light such as direct sunlight or an incandescent light at close range, as this may temporarily increase the power consumption of the watch circuit, thus reducing the power reserve in the capacitor. This condition, however, will be corrected when the case back is turned away from the light. 18 English ENERGY DEPLETION FOREWARNING FUNCTION When the energy stored in the capacitor is reduced to an extremely low level, the second hand starts moving at two-second intervals instead of the normal one-second intervals, indicating that the watch needs recharging and will run down in approximately 3 hours (Cal. If you find the second hand moving at two-second intervals, therefore, be sure to swing the watch from side to side to charge the capacitor sufficiently before using it. Note: The watch remains accurate even while the second hand is moving at two second intervals. English QUICK-START FUNCTION This function is very useful when a watch has been stopped for a long time and you need to get it started quickly with only a few swings. This function is available as long as: 1) 2) the watch previously had more than 2 days (Cal. 19 English 20 * After you swing the watch several times and note that the hands are moving, be sure to put it on your wrist so that it will be charged further until the second hand is moving at one-second intervals. Note: If the second hand continues moving at two-second intervals after the watch is put on your wrist, swing it from side to side until the second hand starts moving at one-second intervals, and then, put in on your wrist. REMARKS ON THE RESERVE POWER OF THE CAPACITOR · As the watch is powered by the electrical energy stored in the capacitor, it uses no battery. · Even while the second hand is stopped by pulling out the crown to the second click, current continues being consumed by the built-in IC. [. . . ] NOTE: Pressure in bar is a test pressure and should not be considered as corresponding to actual diving depth since swimming movement tends to increase the pressure at a given depth. Care should also be taken on diving into water. English s TEMPERATURES +60°C -10°C Your watch works with stable accuracy between a temperature range of 5°C and 35°C (41°F and 95°F). Do not leave your watch in very low temperatures below ­ 10°C (+14°F) for a long time since the cold may cause a slight time loss or gain. However, the above conditions will be corrected when the watch returns to normal temperature. s SHOCKS & VIBRATION Light activities will not affect your watch, but be careful not to drop your watch or hit it against hard surfaces, as this may cause damage. 26 s MAGNETISM Your watch will be adversely affected by strong magnetism. [. . . ]