User manual SEIKO 8M25 ANALOG QUARTZ

[. . . ] While diving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . After diving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 NAMES OF THE PARTS AND THEIR FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . Basic mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Please do not pull the bracelet forcibly. The slider can be pulled out approximately 30 mm. Be careful not to pull it out beyond the limit mark inscribed on it. Refer to the illustration on the next page. 3 Bracelet on the 12 o'clock side of your watch Bracelet on the 6 o'clock side of your watch With the hand which is not wearing the watch, adjust the length of the slider so that the watch fits well around your wrist. 7 7 HOW TO WIND THE MAINSPRING This watch is a self-winding watch equipped with a manual winding mechanism. When the watch is worn on the wrist, the motion of your arm automatically winds the mainspring of the watch. Observe the power reserve indicator to check the amount of the remaining power. "POWER RESERVE INDICATOR" page 68 When first using the stopped watch, it is recommended that you manually wind the mainspring by turning the crown. How to manually wind the mainspring by turning the crown Unlock the crown. "Screw lock type crown" page 61 66 Guide for winding state of the mainspring Self-windingThe mainspring of the watch is designed to be fully wound when it is worn for twelve hours per day for three to five consecutive days. Manual windingFive full rotations of the crown will provide the power to run the watch for approximately ten hours. CAUTION The watch employs a device to prevent overwinding of the mainspring. Once the mainspring is fully wound, the mainspring slips inside, disengaging the winding mechanism. When this happens, you can still turn the crown without damaging the watch, however, please refrain from excessive operation of the mainspring. Slowly turn the crown clockwiseupwardto wind the mainspring with extra care not to press it in. Wind the mainspring until the power reserve indicator shows a full-wound state. Immediately, the second hand starts moving. Try not to stop the second hand movement for longer than 30 minutes. If it is necessary to remain holding the crown at the second click position for longer than 30 minutes, push the crown back in once, and wait for at least 30 seconds after the second hand restarts moving, and then pull out the crown to the second click again to resume time setting. TO PRESERVE THE QUALITY OF YOUR WATCH The watch needs frequent attention. Wipe away moisture, sweat or dirt frequently with a soft dry cloth. To clean the clearancesaround the metallic band, crown, case back or rotating bezel a soft toothbrush is convenient. , After soaking the watch in seawater, be sure to wash the watch in clean pure water and wipe it dry carefully. Turn the crown from time to time In order to prevent corrosion of the crown, turn the crown from time to time. The same practice should be applied to a screw lock type crown. "Screw lock type crown" page 61 77 Performance and caliber of your watch The case back shows the caliber and performance of your watch Water resistance LumiBrite LumiBrite is a luminous paint that is completely harmless to human beings and natural environment, containing no noxious materials such as radioactive substance. LumiBrite is a newly-developed luminous paint that absorbs the light energy of the sunlight and lighting apparatus in a short time and stores it to emit light in the dark. Please note, however, that, as LumiBrite emits the light it stores, the luminance level of the light decreases gradually over time. The duration of the emitted light may also differ slightly depending on such factors as the brightness of the place where the watch is exposed to light and the distance from the light source to the watch. Reference data on the luminance Environment Sunlight Indoor Fine weather Fine weather Rainy weather 1m 3m 4m 78 Indication of brightnessluminance 100, 000 lux more than 3, 000 lux less than 1, 000 lux 1, 000 lux 500 luxaverage room luminance 250 lux Cloudy weather 10, 000 lux Cloudy weather 1, 000 to 3, 000 lux 79 Caliber Number The number to identify the type of your watch Magnetic resistance Refer to pages 80 and 81. Window-side during daytime Lighting apparatus 40-watt daylight fluorescent light The above figures are examples. Both of them may be different from the figure on the case back of your watch. Magnetic resistanceaffect of magnetic field Grand Seiko Diver's watches conform to the Magnetic Resistance Standard of JIS Class 1. The watch has magnetic resistance to maintain performance in most cases even where it is brought close toat least 5cm spaced fromequipment generating a magnetic field in normal life. [. . . ] The watch has been left at an extremely high or low temperature. Solutions Turn the crown to wind the mainspring and reset the time. While you are wearing the watch or when you take it off, check the remaining power shown by the power reserve indicator and wind the mainspring if necessary. Turn the crown to wind the mainspring and reset the time. If the watch is left at a temperature below 0 ºC, it may stop if the power reserve indicator is showing less than one-sixth of the power reserve. [. . . ]