8R39 - Watch SEIKO - Free user manual and instructions

USER MANUAL 8R39 SEIKO

INSTRUCTIONS (P. 54)

ISTRUZIONI (P. 80)

You are now the proud owner of a SEIKO Automatic Chronograph Diver's Watch Cal. 8R39. To ensure its optimum performance, please read the instructions in this booklet carefully before using it. Please keep this manual handy for ready reference.

• Do not attempt to dive using this watch unless you have been properly trained in diving. For your safety, please abide by the rules of diving.
• Do not use the watch for saturation diving using helium gas.
  ● Before diving, make sure that the watch operates normally.

CAUTION

• Please read and observe the instructions described in this booklet to ensure the proper functioning of your diver's watch.
• Do not operate the crown when the watch is wet or in water.
• Do not operate the buttons when the watch is wet or in water.
  ● Avoid hitting the watch against hard objects such as rocks.

WARNING

WARNING notes indicate any condition or practice which, if not strictly observed, could result in severe personal injury or possible death.

CAUTION

CAUTION notes indicate any condition or practice which, if not strictly observed, may result in personal injury or property damage.

PRECAUTIONS ON USING THE WATCH FOR DIVING

Before diving, make sure that the watch operates normally and be sure to observe the precautions described below.

BEFORE DIVING

• Do not use the watch for saturation diving using helium gas.
  ● To measure the elapsed time while you are underwater, always use the rotating bezel
• Check that:

• the crown is locked tightly in place.
• the buttons are locked tightly in place.
• there are no visible cracks in the crystal or the watch band.
• the strap or bracelet is securely fastened to the watch case
• the buckle keeps the strap or bracelet firmly secured to the wrist.
- the rotating bezel turns counterclockwise smoothly (the rotation must not be too loose or too tight) and the ▼ mark aligns with the minute hand.
• the time and calendar are appropriately set.
- the second hand is operating normally (if not, swing the watch for more than 30 seconds to wind the mainspring sufficiently.)

If there are any malfunctions, we recommend that you contact SEIKO CUSTOMER SERVICE CENTER.

WHILE DIVING

• Do not operate the crown and the buttons when the watch is wet or in water.
  ● Take care not to hit the watch against hard objects such as rocks.
• Bezel rotation may become slightly stiffer underwater. This is not a malfunction.

AFTER DIVING

● Rinse the watch in fresh water after diving and wash out all seawater, soil, sand, etc.
- Wipe the watch thoroughly dry to prevent possible rust on the case after cleaning the watch in fresh water.

CONTENTS

	Page
CHARACTERISTICS OF A MECHANICAL WATCH	7
NAMES OF THE PARTS	8
HOW TO USE	9
HOW TO SET THE TIME AND DATE	11
HOW TO USE THE STOPWATCH	14
ROTATING BEZEL	17
SCREW DOWN CROWN	18
TO PRESERVE THE QUALITY OF YOUR WATCH	20
PLACES TO KEEP YOUR WATCH	23
NOTES ON OVERHAUL	23
NOTES ON GUARANTEE AND REPAIR	24
TROUBLESHOOTING	24
ACCURACY OF MECHANICAL WATCHES	26
SPECIFICATIONS	27

SEIKO CAL. 8R39

CHARACTERISTICS OF A MECHANICAL WATCH (self-winding type, automatic winding type)

● This mechanical watch operates using power obtained from a mainspring.
- If the watch is completely stopped, manually turn the crown approximately 20 times to wind up the mainspring to start the watch.
● While loss/gain of a quartz watch is 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. If the 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.

NAMES OF THE PARTS English Center stopwatch hand Hour hand Stopwatch minute hand Minute hand SECKO To START/STOP the stopwatch a b c Small second hand Stopwatch hour hand Calendar B To RESET the stopwatch CROWN CROWN a) Normal position : winding up the mainspring (manual operation) b) First click position : date setting c) Second click position : time setting * The position or design of the displays may differ depending on the model.

HOW TO USE

This watch is an automatic watch equipped with a manual winding mechanism.
- When the watch is worn on the wrist, the motion of the wearer's arm winds the 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

SEKKO 12:00 5 6

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 sufficiently wound. The small second hand will start moving.
3. Set the time and date before putting the watch on your wrist.

* There is no need to turn the crown further when the mainspring is fully wound. But the crown can be turned without damaging the watch mechanism.
* Once the watch is wound up fully, it operates for about 45 hours. However, when the stopwatch is used continuously for a certain period, the watch may not operate for as long as 45 hours.
* 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 being worn 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.
* If the 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 mechanical watches. The small second hand starts to move when a certain degree of strong torque is reached after the mainspring has been wound up. However, swinging the watch from side to side to forcibly turn the balance can start the watch sooner.

HOW TO SET THE TIME AND DATE

• Check that the watch is operating, and then set the time and date.

• The watch is provided with a date function and is designed so that the date changes once every 24 hours. The date changes around 12 o'clock midnight. If AM/PM is not properly set, the date will change around 12 o'clock noon.

• Pull out the crown to the first click. (The small second hand continues moving and the accuracy of the watch is unimpaired.)

• The date can be set by turning the crown counterclockwise. Turn it until the previous day's date appears.
  Ex.) If today is the 6th of the month, first set the date to "5" by turning the crown counterclockwise.

SREIKO Ammol 0.5475 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000 7100 7200 7300 7400 7500 7600 7700 7800 7900 8000 8100 8200 8300 8400 8500 8600 8700 8800 8900 9000 9100 9200 9300 9400 9500 9600 9700 9800 9900 1000

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.

1. Pull out the crown to the second click when the small second hand is at the 12 o'clock 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.

1. 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 back the minute hand a 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 adjust 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.

BEEKO 6

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.

HOW TO USE THE STOPWATCH

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.
• Before using the stopwatch, make sure that the center stopwatch hand is pointing at the 0 position. If it is not pointing at the 0 position, press the Button B to correct the position of the center stopwatch hand.
• Before using the stopwatch, make sure that the mainspring is sufficiently wound.

Start/STOP Center stopwatch hand Stopwatch minute hand Stopwatch hour hand 6 A B RESET

Current time indication: 10 o'clock 8 minutes and 42 seconds Stopwatch time indication: 6 hours 20 minutes and 10 seconds

STOPWATCH OPERATION

STARTSTOPRESET A B A 6°20'10"

START STOP RESTART 2" 8' 40" A A STOP RESET 6" 20' 10" BA

* Restart and stop can be repeated as many times as required by pressing Button A.

How to read the stopwatch minute hand

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.

Stopwatch minute hand "20 min." Stopwatch hour hand

0.5 hour index

When the stopwatch hour hand is pointing at a position before a short indication (0.5 hour index), read the minutes the stopwatch minute hand is indicating. In the case illustrated above, the measured time should be read as '6 hours 20 minutes and 10 seconds.'

Stopwatch minute hand "50 min." Stopwatch hour hand

0.5 hour index

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 illustrated above, the measured time should be read as '6 hours 50 minutes and 10 seconds.'

ROTATING BEZEL

The rotating bezel can show the elapsed time up to 60 minutes. By setting it before diving, you can know how many minutes you are underwater.

To prevent accidental rotation, the rotating bezel is so designed that rotation becomes harder in water. Also for safety's sake, it roatates only counterclockwise, so that the time measured is never shorter than the actual elapsed time.

1. Turn the rotating bezel to align its " mark with the minute hand. * The rotating bezel rotates with clicks. With each click, it turns half a minute.
2. To know the elapsed time, read the number on the rotating bezel that the minute hand points to.

Example: Minute hand "30" on rotating bezel Start(10:10 AMI * "dark" 30 minutes have elapsed.

Bezel rotation may become slightly stiffer underwater. This is not a malfunction.

SCREW DOWN CROWN

• Your watch has a screw down crown to prevent accidental operation and help maintain water-resistant quality.
• To use the crown, it is necessary to unlock the crown first before pulling it out, and it is important to securely screw the crown in after each use.

The crown must be securely locked in the case except when you use it to set the watch.

Turn the crown counterclockwise to unscrew it.

The crown is released and projected outward from its original position.

The crown is unlocked and can be pulled out. The crown is locked

Turn the crown clockwise while pressing it to the case until it is screwed all the way in and locked.

1. Before diving, make sure that the crown is locked tightly in place.
2. Do not operate the crown when the watch is wet or in water.
3. When screwing the crown in, ensure that the crown is correctly aligned and turn it gently. If it is hard to turn, unscrew it first, and then rewind it. Do not screw it in by force as it may damage the thread of the screw or the case.

A Locking Unlocking B Locking Unlocking

Unlocking the push-buttons

- Turn Security Lock Buttons counterclockwise until you no longer feel the threads turning. - The buttons can be pushed in.

Locking the push-buttons

- Turn Security Lock Buttons clockwise until you no longer feel the threads turning. - The buttons cannot be pushed in.

1. Before diving, make sure that both buttons are locked tightly in place.
2. Do not operate the buttons when the watch is wet or in water.

TO PRESERVE THE QUALITY OF YOUR WATCH

- Repair of divers watches requires special expertise and equipment. If you find that your diver's watch is malfunctioning, do not attempt to repair it but immediately send it to SEIKO CUSTOMER SERVICE CENTER.

■ TEMPERATURES

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.

MAGNETISM

Your watch will be adversely affected by strongmagnetism. Keep it away from close contact with magnetic objects.

CHEMICALS

Be careful not to expose the watch to solvents, mercury, cosmetic spray, detergents, adhesives or paints. Otherwise, the case, bracelet, etc. may become discolored, deteriorated or damaged.

■ PERIODIC CHECK

It is recommended that the watch be checked once every 2 to 3 years by an AUTHORIZED SEIKO DEALER or SER VICE CENTER to ensure that the case, crown, gasket and crystal seal remain intact.

■ CARE OF CASE AND BRACELET

To prevent possible rusting of the case and bracelet, wipe them periodically with a soft dry cloth.

Be careful not to drop your watch or hit it against hard surfaces.

■ PRECAUTION REGARDING CASE BACK PROTECTIVE FILM

If your watch has a protective film and/or a sticker on the case back, peel them off before using your watch.

LUMIBRITE™

LumiBrite is a luminous paint that is completely harmless to human beings and the natural environment, containing no noxious materials such as radioactive substances.

LumiBrite is a newly-developed luminous paint that absorbs the light energy of sunlight or artificial light in a short time and stores it to emit light in the dark.

For example, if exposed to a light of more than 500 lux for approximately 10 minutes, LumiBrite can emit light for 5 to 8 hours.

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.

When you make a dive in dark water, LumiBrite may not emit light unless it has absorbed and stored light sufficiently.

Before diving, therefore, be sure to expose the watch to light under the conditions specified above, so that it fully absorbs and stores light energy. Otherwise, use the watch together with an underwater flashlight.

< Reference data on luminance >

(A) Sunlight

[Fine weather]: 100,000 lux [Cloudy weather]: 10,000 lux

(B) Indour (Window side during daytime)

Fine weather): more than 3,000 lux |Cloudy weather|: 1,000 to 3,000 lux

[Rainy weather]: less than 1,000 lux

(C) Lighting apparatus (40-watt daylight fluorescent light)

[Distance to the watch: 1 m]: 1,000 lux

[Distance to the watch: 3 m]: 500 lux (average room luminance)

|Distance to the watch: 4 m|: 250 lux

" LUMIBRITE " is a trademark of SEIKO HOLDINGS CORPORATION.

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.

NOTES ON OVERHAUL

The watch is a precision device with many moving parts lubricated with special oils. If 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.

NOTES ON GUARANTEE AND REPAIR

• 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
The watch stops operating.	The power supplied by the mainspring has been consumed.	Turn the crown or swing the watch to wind it up. The watch will start operating. If the watch does not start, consult the retailer from whom the watch was purchased.
Even though you wear the watch every day, it soon stops operating.	The watch is worn on your wrist only for a short period of time, or the amount of arm movement is small.	Wear the watch for an extended period of time, or when taking off the watch, turn the crown to wind the mainspring.
The date changes at 12 o'clock noon.	AM/PM is not properly set.	Advance the hands by 12 hours.

Problem Possible causes Solutions
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. If this 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.	Consult the retailer from whom the watch was purchased.
The glass is blurred and the blur persists for a long time.	Water got inside the watch due to the deterioration of the gasket, etc.	Consult the retailer from whom the watch was purchased.
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 the 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.

• For the solution of troubles other than listed above, contact the retailer from whom the watch was purchased.

ACCURACY OF MECHANICAL WATCHES

The accuracy of mechanical watches is indicated by the daily rates of one week or 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 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 it is fully wound and immediately before it is 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

Stopwatch Measures up to 12 hours

Stopwatch hour, Stopwatch minute and Stopwatch

second hands

2 Vibrations per hour.... 28,600
3 Loss/gain (daily rate) Between +25 and -15 seconds at normal temperature range (between 5 °C and 35 °C between 41 °F and 95 °F)
4 Continuous operating time .... More than approx. 45 hours
5 Driving system.... Automatic winding type with manual winding mechanism
6 Number of jewels.... 34 jewels
• The accuracy above is factory adjusted.
- Due to the characteristics of mechanical watches, any actual daily rate may not fall within the range of time accuracy specified above dependent on the conditions of use, such as the length of time during which the watch is worn on the wrist, temperature, arm movement, and whether the mainspring is wound up fully or not, etc.