Seiko 9R15 Troubleshooting, If your watch has Lumibrite, Reference data on the luminance

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Lumibrite

If your watch has Lumibrite

Troubleshooting

Troubles

Possible causes

Solutions

Lumibrite is a luminous paint that is completely harmless to human beings and the natural environment; containing no noxious materials such as radioactive substance. Lumibrite is a newly-developed luminous paint that absorbs light energy of the sunlight and lighting apparatus 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 3 to 5 hours.

Please note, however, 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.

※In general, when you enter a dark place from a bright environment, your eye cannot adapt to the change in light levels quickly. At first, you can hardly see anything, but as time passes, your vision gradually improves. (Dark adaptation of the human eye)

Reference data on the luminance

Condition

Illumination

Sunlight

Fine weather

100,000 lux

Cloudy weather

10,000 lux

 

Indoor

Fine weather

more than 3,000 lux

(Window-side during

Cloudy weather

1,000 to 3,000 lux

daytime)

Rainy weather

less than 1,000 lux

 

Distance to the

1,000 lux

 

watch: 1 m

Lighting apparatus

 

Distance to the

 

(40-watt daylight

500 lux (average room luminance)

watch: 3 m

fluorescent light)

 

Distance to the

250 lux

watch: 4 m

 

The watch stops operating.

(The chronograph hands do not move.)

The watch stops even t h o u g h t h e p o w e r reserve indicator is not showing “0.”

The watch temporarily gains/loses time.

The date changes during daytime.

Even though you wear the watch every day, the power reserve indicator does not move up.

Right after starting the watch, it seems that the second hand moves more quickly than usual when setting the time.

Blur in the display persists.

The mainspring has not been wound.

The watch has been left at a low temperature (below 0ºC).

The watch has been left or worn in extremely high or low temperatures.

The watch has been left close to an object with a strong magnetic field.

You drop the watch, hit it against a hard surface, or wear it while playing active sports. The watch is exposed to strong vibrations.

The time is set 12 hours ahead or behind the correct time.

The watch is worn on your wrist only for a short period of time, or the amount of arm movement is small.

When the watch starts moving, it takes a little time before the speed- regulating unit starts operating. (This is not a malfunction.)

Small amount of water has got inside the watch due to deterioration of the gasket, etc.

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. At a temperature below 0ºC, the watch may stop if the power reserve indicator is showing less than one-sixth of the power reserve.

Return the watch to a normal temperature so that it works accurately as usual, and then reset the time. The watch has been adjusted so that it works accurately when it is worn on your wrist under a normal temperature range between 5ºC and 35ºC.

Correct this condition by moving and keeping the watch away from the magnetic source, and reset the time. If this action does not correct the condition, contact the retailer from whom the watch was purchased.

Reset the time. If the watch does not return to its normal accuracy after resetting the time, contact the retailer from whom the watch was purchased.

When you set the time, note that the moment the date changes is midnight. When setting the hour hand, be sure that AM/PM is correctly set.

Wear the watch for an extended period of time. Or turn the crown to wind the mainspring.

It takes several seconds before the s p e e d - r e g u l a t i n g u n i t s t a r t s operating. To set the time correctly, wait for approximately 30 seconds after the second hand starts to move, and set the time.

Consult the retailer from whom the watch was purchased.

English

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

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Contents Spring Drive JSYGS9R1-1302Contents History of Spring Drive Spring Drive Mechanism ① Gear train hands MainspringTri-synchro regulator About the caliber number How to check the caliber numberWater resistance Precautions for diving 9R65, 9R15 Regular models Hour hand Second hand Crown Power reserve Date Indicator9R65, 9R15 Diver’s models 9R66 Model with a rotating bezel 9R66 Regular model9R86, 9R84 Crown Power reserve indicatorHow to read the power reserve indicator Screw-lock type crownDate adjustment at the end of the month How to wind the main springTips for more accurate time setting How to set the time and dateNames of the chronograph parts and their function How to use the screw-lock type buttonBefore using the stopwatch function Screw-lock type button② If your watch has screw-lock How to use the stopwatch functionAccumulated elapsed time measurement Working Type buttons, unlock themHow to compute productivity rate per hour How to use the tachymeterHow to measure average speed of your vehicle How to set the time and calendarHow to set the calendar Time difference adjustment function How to use the 24-hour handHow to use the time difference adjustment function When daylight saving time is observed How to use the bi-directional rotating bezelSelectable display mode On the rotating bezelUnidirectional rotating bezel How to use the rotating bezelList of time zone differences in major regions of the world After-sale service Diver adjusterHow to use the diver adjuster Replacement partsGuarantee Daily careMetallic band BandMagnetic resistance Magnetic influence Leather bandIf your watch has Lumibrite TroubleshootingLumibrite Reference data on the luminanceSPECIFICATIONS（Movement）

9R15, 9R65 specifications

The Seiko 9R series is a remarkable line of mechanical watches featuring Spring Drive technology, a hallmark of precision and innovation. Among its esteemed models, the 9R65 and 9R15 movements stand out for their unique characteristics and advancements.

The 9R65 movement is known for its impressive power reserve of up to 72 hours, which is significant for a watch powered by a spring-driven mechanism. This makes it extremely reliable for everyday wear, as users can take the watch off for a weekend without worrying about it stopping. One of the most notable features of the 9R65 is its smooth and continuous movement of the second hand, a signature of Spring Drive technology. Instead of ticking like traditional mechanical watches, the 9R65 provides a seamless glide, offering a visual experience that is both captivating and elegant.

On the other hand, the 9R15 movement, while sharing some similarities with the 9R65, takes the craftsmanship a step further with its chronograph function. This feature allows users to accurately measure elapsed time, making it ideal for sports enthusiasts and those who require precision timing. The 9R15 has a power reserve of approximately 60 hours, ensuring that it maintains its functionality over an extended period. Its robust design is complemented by the familiar Spring Drive mechanism, ensuring that while it offers additional functionality, it does not compromise on the smoothness and reliability typical of Seiko.

Both movements utilize Seiko’s advanced Spring Drive technology, which combines the best elements of mechanical and quartz watchmaking. This unique hybrid system allows for unparalleled accuracy, with variations of just one second per day, which is exceptional for a mechanical watch. Furthermore, the 9R series features a durable construction, incorporating high-quality materials such as stainless steel and ceramic, enhancing their longevity and resistance to wear.

In conclusion, the Seiko 9R65 and 9R15 movements exemplify the brand’s commitment to innovation, precision, and durability. Whether you prefer the minimalist elegance of the 9R65 or the added complexity of the chronograph in the 9R15, both options promise an exceptional blend of technology and artistry that showcases Seiko's prowess in horology. These movements not only cater to the demands of modern watch enthusiasts but also pay homage to the intricate traditions of watchmaking, making them a desirable choice for collectors and aficionados alike.
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