Seiko 9R65, 9R15 manual SPECIFICATIONS（Movement）

Seiko 9R65, 9R15 manual Spring Drive, JSYGS9R1-1302 Seiko 9R15, 9R65 manual Contents Seiko 9R65, 9R15 manual History of Spring Drive Seiko 9R15, 9R65 manual Spring Drive Mechanism ① Seiko 9R65, 9R15 manual Mainspring, Gear train hands, Tri-synchro regulator Seiko 9R15, 9R65 manual About the caliber number, How to check the caliber number, Water resistance Seiko 9R65, 9R15 manual Precautions for diving Seiko 9R65, 9R15 Regular models, 9R65, 9R15 Diver’s models, Hour hand Second hand Crown Power reserve Date Indicator Seiko 9R65, 9R15 manual 9R66 Regular model, 9R66 Model with a rotating bezel, 9R86, 9R84 Seiko 9R15, 9R65 manual Crown, Screw-lock type crown, Power reserve indicator, How to read the power reserve indicator Seiko 9R65, 9R15 How to wind the main spring, Tips for more accurate time setting, Date adjustment at the end of the month Seiko 9R15 Names of the chronograph parts and their function, Screw-lock type button, Before using the stopwatch function Seiko 9R65, 9R15 How to use the stopwatch function, Accumulated elapsed time measurement, ② If your watch has screw-lock Seiko 9R15, 9R65 How to use the tachymeter, How to measure average speed of your vehicle, How to set the time and calendar Seiko 9R65, 9R15 manual How to set the calendar Seiko 9R15, 9R65 manual How to use the 24-hour hand, Time difference adjustment function Seiko 9R65, 9R15 manual How to use the bi-directional rotating bezel, Selectable display mode, On the rotating bezel Seiko 9R15, 9R65 manual Unidirectional rotating bezel, How to use the rotating bezel Seiko 9R65, 9R15 manual Diver adjuster, How to use the diver adjuster, After-sale service, Replacement parts Seiko 9R15, 9R65 manual Guarantee, Daily care Seiko 9R65, 9R15 manual Band, Magnetic resistance Magnetic influence, Metallic band, Leather band, Polyurethane band Seiko 9R15, 9R65 manual Troubleshooting, If your watch has Lumibrite, Reference data on the luminance Seiko 9R65, 9R15 manual SPECIFICATIONS（Movement）
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■SPECIFICATIONS（Movement）

Caliber no.

9R86, 9R84

 

Hour, minute, second hands and calendar.

Common features

Power reserve indicator

Stopwatch function

 

 

Center chronograph second hand, Chronograph hour and minute hands.

Extra features for

24-hour hand, Time difference adjustment function interrelated with

Cal. 9R86 only

the date display

Frequency of crystal oscillator

32,768 Hz

Loss/gain

Average monthly rate of ±15 seconds (equivalent to daily rate of ±1 second) *1

Operational temperature range

−10℃ to ＋60℃ *2

Driving system

Automatic winding type with manual winding function

Hand movement

Glide motion

Continuous operating

Normal use with stopwatch operation

time

Approx. 72 hours (Approx. 3 days) *3

IC (Integrated Circuit)

Oscillator, frequency divider, and spring drive control circuit

(C-MOS-IC): 1 piece

 

Number of jewels

50 jewels for Cal. 9R86, 41 jewels for Cal. 9R84

Caliber no.

9R66

Features

Hour, minute, second, 24-hour hands and calendar.

Time difference adjustment function interrelated with the date display, Power reserve indicator

 

Frequency of crystal oscillator

32,768 Hz

Loss/gain

Average monthly rate of ±15 seconds (equivalent to daily rate of ±1 second) *1

Operational temperature range

−10℃ to ＋60℃ *2

Driving system

Automatic winding type with manual winding function

Hand movement

Glide motion

Continuous operating time

Approx. 72 hours (Approx. 3 days) *3

IC (IntegratedCircuit)

Oscillator, frequency divider, and spring drive control circuit

(C-MOS-IC): 1 piece

 

Number of jewels

30 jewels

Caliber no.

9R65, 9R15

Features

Hour, minute, second, 24-hour hands and calendar.

Frequency of crystal oscillator

32,768 Hz

Loss/gain (9R65) Average monthly rate of ±15 seconds (equivalent to daily rate of ±1 second) *1 Loss/gain (9R15) Average monthly rate of ±10 seconds (equivalent to daily rate of ±0.5 second) *1

Operational temperature range

−10℃ to ＋60℃ *2

Driving system

Automatic winding type with manual winding function

Hand movement

Glide motion

Continuous operating time

Approx. 72 hours (Approx. 3 days) *3

IC (IntegratedCircuit)

Oscillator, frequency divider, and spring drive control circuit

(C-MOS-IC): 1 piece

 

Number of jewels

30 jewels

*1：The average rate is estimated in a condition when the watch is worn on your wrist within a temperature range between 5ºC and 35ºC.

*2：Under a low-temperature condition (below 0ºC), always keep at least one-sixth of the watch power shown by the power reserve indicator.

*3：When the power reserve indicator shows the power supplied by the mainspring is full, the continuous operating time may become shorter depending on the condition of use.

※ The specifications are subject to change without prior notice due to product improvement.

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Image 23 Seiko 9R65, 9R15 manual SPECIFICATIONS（Movement）
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Contents JSYGS9R1-1302 Spring DriveContents History of Spring Drive Spring Drive Mechanism ① Tri-synchro regulator MainspringGear train hands Water resistance How to check the caliber numberAbout the caliber number Precautions for diving 9R65, 9R15 Diver’s models Hour hand Second hand Crown Power reserve Date Indicator9R65, 9R15 Regular models 9R86, 9R84 9R66 Regular model9R66 Model with a rotating bezel Screw-lock type crown Power reserve indicatorHow to read the power reserve indicator CrownHow to set the time and date How to wind the main springTips for more accurate time setting Date adjustment at the end of the monthScrew-lock type button How to use the screw-lock type buttonBefore using the stopwatch function Names of the chronograph parts and their functionWorking Type buttons, unlock them How to use the stopwatch functionAccumulated elapsed time measurement ② If your watch has screw-lockHow to set the time and calendar How to use the tachymeterHow to measure average speed of your vehicle How to compute productivity rate per hourHow to set the calendar How to use the time difference adjustment function How to use the 24-hour handTime difference adjustment function On the rotating bezel How to use the bi-directional rotating bezelSelectable display mode When daylight saving time is observedList of time zone differences in major regions of the world How to use the rotating bezelUnidirectional rotating bezel Replacement parts Diver adjusterHow to use the diver adjuster After-sale serviceDaily care GuaranteeLeather band BandMagnetic resistance Magnetic influence Metallic bandReference data on the luminance TroubleshootingLumibrite If your watch has LumibriteSPECIFICATIONS（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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