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Keep this manual handy for easy reference. ※ Length adjustment service for metallic bands is available at the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER. The service may also be available on a chargeable basis at other...
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CONTENTS 1.About this Product How to set the day and date … 60 Handling cautions …………………… 46 Date adjustment at the beginning of the month … 62 Characteristics of mechanical watches 3.TO PRESERVE THE QUALITY OF YOUR WATCH (manual winding model, automatic winding model)...
○ If the watch body or band becomes edged by corrosion etc. ○ If the pins protrude from the band. ※ Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER. ・Keep the watch and accessories out of the reach of babies and children.
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CAUTION To indicate the risks of light injuries or material damages unless the following safety regulations are strictly observed. ・Avoid the following places for wearing or keeping the watch. ○ Places where volatile agents (cosmetics such as polish remover, bug repellent, thinners etc.) are vaporizing ○...
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Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTMER SERVICE CENTER (listed on the end of a book).
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CAUTION Do not leave moisture, sweat and dirt on the watch for a long time. Be aware of a risk that a water resistant watch may lessen its water resistant performance because of deterioration of the adhesive on the glass or gasket, or the development of rust on stainless steel. Do not wear the watch while taking a bath or a sauna.
Characteristics of mechanical watches(manual winding model, automatic winding model) ・ This is a mechanical watch that uses the mainspring as its power source. ・ When starting to use a watch after it stops, turn the crown approximately 20 times by hand to wind the mainspring. ・...
Names of the parts 6R20 ╱ 6R21 Hour Hand Minute hand Crown Power reserve indicator Day hand Second hand Date hand ※The design of the index is different depending on the model. ※The direction of the power reserve indicator is different depending on the model.
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6R24 6R27 Hour Hour Minute Minute Hand Hand hand hand Power Power Crown Crown reserve reserve indicator indicator Second Second hand hand hand Date Date hand hand ※ The design of the index is diff erent depending on the model.
Crown There are two types of crowns, a normal crown and a screw-lock crown. Normal crown While pressing the crown crown in, turn it in Pull out the crown and operate it. turns. the direction indicated by the arrow. The crown Screw-lock type crown does not turn.
How to use the automatic mechanical watch This is an automatic mechanical watch with manual winding mechanism. When the watch is worn on the wrist, the mainspring is wound automatically through normal wrist movement. The watch can also be wound up by turning the crown. To do so, unscrew the crown by turning it counterclockwise.
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Normal Position ※ If the watch is used without being wound up fully, gain or loss of the watch may result. To avoid this, wear the watch for more than 10 hours a day. If the watch is used without wearing on the wrist;...
How to read the power reserve indicator ・ The power reserve indicator lets you know the winding state of the mainspring. ・ Before removing the watch from your wrist, observe the power reserve indicator to check if the watch has enough power stored to keep running until the next time you wear it.
How to set the time, day and date ・ Check that the watch is operating, and then set the time, day and date. ※ In 6R27, there is only a date display. ・ The watch is provided with a day and date function and is so designed that the day and date changes once every 24 hours.
■ How to set the time After making sure that the mainspring is suffi ciently wound, pull out the crown to the second click when the second hand is at the 12 o’ clock position. The second hand stops on the spot. Turn the crown to advance the hour and minute hands until they indicate the current time.
■ How to set the day and date Pull out the crown to the first click. (The second hand continues moving and the accuracy of the watch is unimpaired.) The day can be set by turning the crown clockwise. <for Cal. 6R24> ・...
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Normal Position(Manual winding) ・clockwise →winding ・counterclockwise→non-winding First click position(Day and date setting) 6R20/6R21/6R24 ・clockwise → day setting ・counterclockwise → date setting 6R27 ・clockwise → non-setting ・counterclockwise → date setting CAUTION ・The mechanism of mechanical watches is diff erent from that of quartz watches. ...
■ Date adjustment at the beginning of the month It is necessary to adjust the date on the fi rst day after a month that has less than 31days. Ex.) To adjust the date in the a.m. period on the fi rst day of a month following a 30-day month.
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CAUTION ○ It cannot set the day and date for "The no setting period" during 2:00 a.m. from 9:30 p.m. Even if you turn the crown, the watch does not break down.
Daily care ● The watch requires good daily care ・Do not wash the watch when its crown is at the extended position. ・Wipe away moisture, sweat or dirt with a soft cloth ・ To clean the clearances (around the metallic band, crown or case back), a soft toothbrush is convenient.
Performance and type The case back shows the caliber and performance of your watch Water resistant performance Refer to pages 66 to 67 Magnetic resistant performance Reter to pages 68 to 69 R2 AG Caliber number The number to identify the type of your watch ※...
Water resistance Refer the table below for the description of each degree of water resistant performance of your watch before using. (Refer to " page 65 ") Indication on the case back Water resistant performance No indication Non-water resistance WATER RESISTANT Water resistance for everyday life WATER RESISTANT Water resistance for everyday life at...
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Condition of use Avoid drops of water or sweat Not suitable for The watch withstands accidental WARNING WARNING contact with water in everyday life. swimming The watch is suitable for sports such as swimming. The watch is suitable for diving not using an air cylinder.
Magnetic resistance Aff ected by nearby magnetism, a watch may temporarily gain or lose time or stop operating. Indication on the case back Condition of use No indication Keep the watch more than 5 cm away from magnetic products. (JIS level-1 standard) Keep the watch more than 1 cm away from magnetic products.
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Examples of common magnetic products that may aff ect watches AC adapter Cellular phone AC-powered (with magnet buckle) (speaker) shaver Magnetic Portable radio Magnetic Magnetic cooking device (speaker) necklace health pillow...
Band The band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of care may accelerate deterioration of the band or cause skin irritation or stain on the sleeve edge. The watch requires a lot of attention for long usage. ●...
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● Leather band ・ A leather band is susceptible to discoloration and deterioration from moisture, sweat and direct sunlight. ・ Wipe off moisture and sweat as soon as possible by gently blotting them up with a dry cloth. ・ Do not expose the watch to direct sunlight for a long time. ・...
Special clasps There are 3 type of special clasps as described below; If the clasp of the watch you purchased is one of them, please refer to the indications. A Type B Type → page 73 → page 74 C Type →...
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A Type Lift up the clasp to release Open the fl ap. the buckle. Buckle Flap Fixed loop Moveable loop Take the pin out of the adjustment hole, Close the fl ap. adjust the size of the strap by sliding it back and forth, and then put the pin back into the appropriate adjustment hole.
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B Type ・How to wear or take off the watch Press the button on both sides of the fl ap ; Place the tip of the band into the moveable pull the buckle up. loop and fi xed loop, and fasten the clasp by The band will automatically come out of the loop.
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・How to adjust the length of the leather band With pressing buttons on both sides of the flap, pull the Press the push buttons again leather band out of the moveable loop and fi xed loop. Then to unfasten the fl ap. open the clasp.
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C Type Press the button on the buckle, Pull the pins out of the adjustment and lift to open the clasp. holes on the band. Slide the band to the appropriate length. Push the pins into the new holes on the band. Push button Adjustment hole Pins...
Lumibrite If your watch has 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.
After-sale service ● Notes on guarantee and repair ・ Contact the retailer the watch was purchased from or SEIKO CUSTOMER SERVICE CENTER for repair or overhaul. ・ Within the guarantee period, present the certifi cate of guarantee to receive repair services.
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Please contact the retailer from whom the watch was purchased for inspection and adjustment by disassembly and cleaning (overhaul). For replacement of parts, please specify "SEIKO GENUINE PARTS." When asking for inspection and adjustment by disassembly and cleaning (overhaul), make sure that the...
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Troubleshooting Problem Possible cause The power supplied by the mainspring has been The watch stops operating. consumed. Even though the watch is worn every day, the The watch is worn on your wrist only for a short time, power reserve indicator does not move up.
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Solution 参照ページ Wind the mainspring and reset the time. While wearing the watch or before taking How to use it off , check the power reserve indicator, and wind the mainspring if necessary. the automatic mechanical watch Wear the watch for a longer time. Before removing the watch from your wrist, observe the power reserve indicator to make sure that the watch has enough power stored to keep running until the next time you wear it.
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Accuracy of Mechanical Watches ● The accuracy of mechanical watches is indicated by the "daily rate." ● The accuracy of mechanical watches may not fall within the specifi ed range of time accuracy because loss/gain changes due to the position of the watch, which is dependent on the conditions of use, such as the length of time during which the watch is worn on the wrist, arm movement, and whether the mainspring is wound up fully or not, etc.
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● Mainspring wound condition and accuracy In order to improve accuracy, it is important to regularly supply energy to the balance that controls the speed of the gears. The driving force of the mainspring that powers mechanical watches varies between when fully wound and immediately before it is unwound.
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Specifi cations Cal. 6R20/6R21 6R24 6R27 6 hands 5 hands 1.Function Time display (Hour, minute and Time display (Hour, second hands), day and date minute and second display,power reserve hands), date display, indicator power reserve indicator 2.Vibrations per hour 28,800/Hour 3.Loss/gain +25 ∼...