8R28 AUTOMATIC CHRONOGRAPH - Automatic chronograph watch SEIKO - Free user manual and instructions

USER MANUAL 8R28 AUTOMATIC CHRONOGRAPH SEIKO

HOW TO SET THE TIME AND DATE

HOW TO USE THE STOPWATCH

PLACES TO KEEP YOUR WATCH

ACCURACY OF MECHANICAL WATCHES

WATCH {self-winding type, automatic winding type) © This mechanical watch operates using power obtained from a mainspring. © ifthe watch is completely stopped, manually turn the crown approximately 20 times 40 wind up the mainspring to start the watch. © While loss/gain of a quartz watchis indicated by a monthly or annual rate, accuracy

of a mechanical watch is normally indicated by a daily rate (loss/gain per day). Normal usage accuracy of a mechanical watch varies according to conditions of use {time period that the watch is worn on the wrist, temperature environment, hand movement, and winding state of the mainspring). © When the watch is affected by strong magnetism, it temporarily gains or loses time. Ifthe watch encounters a strong magnetic field, the parts of the watch may be magnetized. In this case, repairs such as removal of magnetism are required. Contact the retailer from whom the watch was purchased.

Calendar Small second hand Stopwatch hour hand To RESET the stopwatch

English © Check the type of the crown of your watch HA The crown N tums: The crown of your watch is the screw lock type.* Turn the SP Go to crown “HOW TO clockwise. L_ [Te crown Unsorew the crown by turning it " I does not |} counterclockwise. turn. If your watch has a screw-lock crown, the crown will screw into the watch case for added protection. After completing all settings of the watch, screw the crown in again by turning it clockwise while pressing it. I the crown is too stiff to be screwed in, turn the crown counterclockwise once and then give another try. Do not screw it in by force as it may damage the slots of the crown.

This watch is an automatic watch equipped with a manual winding mechanism. + When the watch is worn on the w mainspring of the watch + If your watch is completely stopped, it is recommended that you manually wind the mainspring by turning the crown © How to manually wind the mainspring by turning the crown ; the motion of the wearer's arm winds the

1. Slowly turn the crown clockwise (in

the 12 o'clock direction) to wind the mainspring. + Turning the crown counterclockwise (the 6 o'clock direction) does not wind the mainspring.

2. Continue to turn the crown until the

mainspring is sufficientiy wound. The small second hand will start moving.

3. Set the time and date before putting the

watch on your wrist. ys1fBua

• There is no need to turn the crown further when the mainspring is fully wound. But HOW TO SET THE TIME AND DATE £ the crown can be turned without damaging the watch mechanism. + Check that the watch is operating, and then set the time and date. Æ "Once the watch is wound up {ul}, it operates for about 45 hours. However, when + The watch is provided with a date function and is designed so thatthe date changes 5 the stopwatch is used continuous|y for à certain period, the watch may not operate once every 24 hours. The date changes around 12 o’clock midnight. 1f AM/PM is for as long as 46 hours. not properly set, the date will change around 12 o’clock noon.

• _Ifthe watch is used without being wound up fulÿy, 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 being wo on the wrist (if it is used on the desk like a clock, for example), make sure to wind it up fully every day at a fixed time.

• _Ifthe watch has stopped with the mainspring unwound, winding the mainspring with the crown will not start the watch immediately. This is because the mainspring torque (force) is low at the beginning of its winding due to the characteristics of

1. Pull out the crown to the first click. (The small

second hand continues moving and the accuracy of the watch is unimpaired.)

2. The date can be set by turning the crown

counterclockwise. Turn it until the previous day's mechanical watches. The small second hand starts to move when a certain degree date appears. of strong torque is reached after the mainspring has been wound up. However, Ex.) Iftoday isthe 6thofthe month, first setthe date to swinging the watch from side to side to forcibly turn the balance can start the watch “5" by turning the crown counterclockwise. sooner. A CAUTION + Do not set the date between 8:00 p.m. and 2:00 a.m. If you do so, the date may not change properly on the following day or malfunction of the watch may occur. ys1fBua

3. Pull out the crown to the second click when the small second hand is at the 12

o'elock position. (The small second hand stops on the spot.) Turn the crown to advance the hands until the date changes to the next. The time is now set for the a.m. period. Advance the hands to set the correct time.

4. Push the crown back in to the normal position in accordance with a time signal.

The mechanism of mechanical watches is different from that of quartz watches. When setting the time, make sure to turn backthe minute hand little behind the desired time and then advance it to the exact time. © Date adjustment at the beginning of the month It is necessary to adjust the date on the first day after a month that has less than 31 days. Ex.) To adust the date in the a.m. period on the first day of a month following a 30-day month.

1. The watch displays “31” instead of “1”. Pull out

the crown to the first click.

2. Turn the crown to set the date to “1” and then |

push the crown back in to the normal position. + Do not set the date between 8:00 p.m. and 2:00 a.m. If you do so, the date may not change properly on the following day or malfunction of the watch may occur. ys1fBua

This watch features a stopwatch function which can measure up to 12 hours. A chronograph refers to a watch that has a stopwatch function in addition to a time display function. he stopwatch, make sure that the center stopwatch hand is pointing ion. Ifitis not pointing at the 0 position, press the Button B to correct

Stopwatch minute hang/S/ÆX Fee

Stopwatch hour hand 10 o'clock 8 minutes and 42 seconds Stopwatch time indication: 6 hours 20 minutes and 10 seconds Current time indicatioi STOPWATCH OPERATION <STANDARD MEASUREMENT>

• Restart and stop can be repeated as many times as required by pressing Button À ys1fBua

English {How to read the stopwatch minute hand A The stopwatch minute hand completes a full rotation in 30 minutes. The correct indication of the stopwatch minute hand is determined in connection with the position of the stopwatch hour hand. <Between 0 and 29 minutes> Stopwatch hour hand

When the stopwatch hour hand is painting at a position before a short indication (0.5 hour index) readthe minutes the stopwatch minute bandisindicating. In the caseilustratedabove, the measured time should be read as "6 hours 20 minutes and 10 seconds." <Between 30 and 59 minutes> Stopwatch hour hand

When the stopwatch hour hand is pointing at a position after a short index (0.5 hour index}, 30 minutes should be added to the minutes that the stopwatch minute hand is indicating. In the case ilustrated above, the measured time should be read as "6 hours 50 minutes and 10 seconds." D TO PRESERVE THE QUALITY OF YOUR WATCH

© CARE OF YOUR WATCH

+ The case and band touch the skin directly. Keep the case and band clean at all times. This will help to extend the life of the watch and will reduce the risk of skin irritations. + When you take the watch off, wipe off moisture, sweat or soil with a soft dry cloth as soon as possible. This will help to extend the life of the case, band and gasket. <Leather strap> + Gentiy blot up the moisture using a soft dry cloth. Do not rub the leather, s this may cause abrasions or discoloration. <Metal bracelet> + To keep the bracelet clean, use a soft toothbrush dipped in clean or soapy water. Be careful not to get water on the case.

+ Adjust the band to allow a little clearance around your wrist to ensure proper airflow. + Prolonged and/or repeated contact with the band may cause skin irritation or dermatitis for those susceptible: + Possible causes of dermatitis + Allergic reaction to metals or leathers + Rust, contamination or perspiration accumulated on the watch case or band. If you should develop any allergie symptoms or skin irritation, immediately stop wearing the watch and seek medical attention. © WATER RESISTANCE © Non-water resistance I “WATER RESISTANT" is not inscribed on the case back, your watch is not water resistant, and care should be taken not to get it wet as water may damage the movement. If the watch becomes wet, we suggest that you have it checked by the retailer from whom the watch was purchased or your SERVICE CENTER. © Water resistance (3 bar) If "WATER RESISTANT" is inscribed on the case back, your watch is designed and manufactured to withstand up to 3 bar, such as accidental contact with splashes of water or rain, but it is not designed for wearing while swimming or diving. © Water resistance (5 barl* If "WATER RESISTANT 5 BAR” is inscribed on the case back, your watch is designed and manufactured to withstand up to 5 bar and is suitable for wearing while swimming, yachting and taking a shower. © Water resistance (10 bar/15 bar/20 bar* If "WATER RESISTANT 10 BAR”, "WATER RESISTANT 15 BAR" or "WATER RESISTANT 20 BAR” is inscribed on the case back, vour watch is designed and manufactured to withstand up to 10 bar/15 bar/20 bar, respectively, and is suitable for wearing while taking a bath or shallow diving, but not for scuba divin We recommend that you wear a SEIKO Divers watch wl scuba diving. *_ Before using a water resistant 5, 10, 15 or 20 bar watch in water, make sure the crown is pushed in completely. Do not operate the crown when the watch is wet or in water. If used in sea water, rinse the watch in fresh water and dry it completely. PTE

+ When taking a shower while wearing a water resistant 5 bar watch, or taking 2 bath while wearing a water resistant 10, 15 or 20 bar watch, make sure to observe the following: + Do not operate the crown when the watch is wet with soapy water or shampoo. + Ifthe watch is left in warm water, a slight time loss or gain may be caused. This condition, however, willbe correctedwhen the watch returns to normal temperature. NOTE: Pressure in bars atest pressure and should not be considered as corresponding to an actual diving depth since swimming movements tend to increase the pressure at a given depth. Care should also be taken when diving with the watch into water.

PRECAUTIONS ON WEARING YOUR WATCH

+ Exercise care when you hold an infant or small child. while wearing the watch on your wrist, as the infant or child may be injured or develop an allergic reaction caused by direct contact with the watch. + Avoid undue shocks such as dropping or scratching against hard surfaces or playing active sports, which may cause temporary malfunctions. + There is a possibility of injury caused by wearing the watch on your wrist especially you fall down or bump into other people or objects

PLACES TO KEEP YOUR WATCH

Do not leave the watch in a place where the temperature drops below 5 °C (41° F) or rises above 35 °C (95 °F) for a long time. © Do not leave the watch in a place where it will be subjected to strong magnetism {for example, near television sets, loudspeakers or magnetic necklaces) or static electricity. © Do not leave the watch where there are strong vibrations. © Do not leave the watch in dusty places. © Do not expose the watch to chemical substances or gases. {Ex.: Organic solvents such as benzine and thinner, gasoline, nail polish, cosmetic sprays, detergents, adhesives, mercury, and iodine antiseptic solution.) © Do not leave the watch in close contact with hot spring water.

© The watch is a precision device with many moving parts lubricated with special . £the parts run short of oil or get worn out, the watch may lose time or stop operation. In such a case, have the watch overhauled. ys1fBua

© Please contact the retailer the watch was purchased from or SEIKO CUSTOMER SERVICE CENTER for repair or overhaul. © Within the guarantee period, please present the certificate of guarantee to receive repair services. © Guarantee coverage is provided in the certificate of guarantee. Please read carefully and retain it. TROUBLESHOOTING Problem Possible causes Solutions Problem Possible causes Solutions The watch stops The power supplied by | Turn the crown or swing the watch operating. the mainspring has been | to wind it up. The watch will start consumed. operating. Ifthe watch does not start, consult the retailer from whom the watch was purchased. The watch gains/loses time temporarily. The watch has been left in extremely high or low temperatures for a long time. Normal accuracy will resume when the watch returns to normal temperature. The watch was brought into close contact with a magnetic object. Normal accuracy will resume when the watch is kept away from close contact with the magnetic source. Ifthis condition persists, consult the retailer from whom the watch was purchased, You dropped the watch, hit it against a hard surface or wore it while playing active sports. The watch was exposed to strong vibrations. Normal accuracy will not resume Consult the retailer from whom the watch was purchased! The watch has not been overhauled for more than 3 years. TConsultihe retailer from whom the watch was purchased! The glass is blurred and the blur persists for a long time. Water gotinside the watch due to the deterioration of the gasket, etc. TConsultihe retailer from whom the watch was purchased! Even though you wear | The watchis wornon Wear the watch for an extended the watch every day, it | your wrist only for a short | period of time, or when taking off the soon stops operating. | period of time, orthe watch, turn thé crown to wind the amount of arm movement | mainspring. is small The stopwatch minute hand and stopwatch hour hand move while you are setting the watch to the current time. Time setting is done while the stopwatch is operating. Push Ie crown back In to the normal position. And then, stop and reset the stopwatch. After that, if you wish to set the time, follow the procedures in “HOW TO SET THE TIME AND DATE” section of this booklet The date changes at 12 | AM/PM is not properly set. | Advance the hands by 12 hours. clock noon + For the solution of troubles other than listed above, contact the retailer from whom the watch was purchased. Us1fBu

ACCURACY OF MECHANICAL WATCHES

ated by the daily rates of one week or © The accuracy of mechanical watches is so. © The accuracy of mechanical watches may not fall within the specified range of time accuracy because of loss/gain changes due to the conditions of use, such as the length of time during which the watch is worn on the wrist, arm movement, whether the mainspring is wound up fully or not, etc. © The key components in mechanical watches are made of metals which expand or contract depending on temperatures due to metal properties. This exerts an effect on the accuracy of the watches. Mechanical watches tend to lose time at high temperatures while they tend to gain time at low temperatures. © In orderto improve accuracy, itis important to regularly supply energy to the balance that controls the speed of the gears. The driving force ofthe mainspring that powers mechanical watches varies between when it is fully wound and immediately before itis unwound. As the mainspring unwinds, the force weakens. Relatively steady accuracy can be obtained by wearing the watch on the wrist frequently for the self-winding type and winding up the mainspring fully everyday at a fixed time to move it regularly for the wind-up mechanical type. © When affected by strong external magnetism, a mechanical watch may loss/gain time temporarily. The parts of the watch may become magnetized depending on the extent of the effect. In such a case, consult the retailer from whom the watch was purchased since the watch requires repair, including demagnetizing. SPECIFICATIONS 1 Display system Time/Calendar. Hour, minute and small second hands Date is displayed in numerals Stopwateh Measures up to 12 hours Stopwateh hour, Stopwatch minute and Stopwateh second hands 28,800 Between +25 and -15 seconds at normal temperature range (between 5 °C and 35 °C or between 41 °F and 95 °F)

2. Vibrations per hour

Loss/gain (daily rate) 4 Continuous operating time 5 Driving system More than approx. 45 hours Automatic winding type with manual winding mechanism 6 Numberof jewels 84 jewels + The accuracy above is factory adijusted! + Due to the characteristics of mechanical watches, any actual daily rate may not fall within the range of time aceuracy specified above dependent on the conditions of use, such as the length of time during which the watch is worn on the wrist, temperâture, arm movement, and whether the mainspring is wound up fully or not, etc. ys1fBua