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Seiko 4R36 - User Manual

Seiko 4R36
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4R35 / 4R36 / 4R37 / 4R38 / 4R39 / 4R71 / 4R72 JSY4RCC2-A2206
4R35 / 4R36 / 4R37 / 4R38 / 4R39 / 4R71 / 4R72
INSTRUCTIONSMECHANICAL WATCH
https://www.seikowatches.com/
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Please refer to the Instruction Manuals of other languages by accessing
"Customer Service"→ "Instruction" on our Website from PC or Smartphone.

Questions and Answers

  • R
    Richard MaloneAug 19, 2025
    How to fix a Seiko Watch that stopped working?
    • R
      Rachel GarnerSep 12, 2025
      If your Seiko Watch stops operating, it might be because the power from the mainspring is depleted. To resolve this, try turning the crown or swinging the watch to wind it up. This should start the watch. If the issue persists, it is recommended to consult the retailer where you purchased the watch.
  • M
    Michael EricksonAug 21, 2025
    Why does my Seiko 4R36 Watch change the date at noon?
    • J
      Jillian HaleAug 21, 2025
      If the date on your Seiko Watch changes at 12 o’clock noon instead of midnight, it indicates that the AM/PM setting is incorrect. To correct this, simply advance the hands by 12 hours.
  • C
    Chloe RogersAug 23, 2025
    Why does my Seiko Watch stop even when I wear it every day?
    • C
      Cindy GonzalezAug 23, 2025
      If your Seiko Watch stops operating quickly even when worn daily, it might not be worn for a sufficient amount of time or the level of arm movement is too low. To fix this, wear the watch for a longer period each day. Alternatively, when you take off the watch, turn the crown to wind the mainspring.
  • T
    Tamara NicholsAug 26, 2025
    What to do if my Seiko 4R36 Watch stops operating?
    • S
      Samantha Aguirre DDSAug 26, 2025
      If your Seiko watch stops operating, it may not be wound up sufficiently. Turn the crown or swing the watch to wind it up; this should start it. If the watch still doesn't work, consult the retailer.
  • K
    Kathleen GardnerAug 28, 2025
    Why does my Seiko 4R36 gain or lose time?
    • J
      jacobmeadowsAug 28, 2025
      Your Seiko Watch may gain or lose time temporarily if it has been exposed to extremely high or low temperatures for an extended period. To resolve this, return the watch to a normal temperature, allowing it to work accurately again, and then reset the time. This issue can also arise if the watch is near a strong magnetic field. If this is the case, move the watch away from the magnetic source and reset the time. Also, strong vibrations or impacts can cause this issue. If accuracy doesn't improve after resetting the time, it is recommended to consult the retailer from whom the watch was purchased.
  • C
    christine36Aug 29, 2025
    What to do if my Seiko 4R36 stops working?
    • B
      Brandi Hart DVMAug 29, 2025
      If your Seiko Watch stops operating, it may be because the mainspring has not been wound. Wind up the watch according to the instructions, and set the time. If the watch still does not operate after winding, consult the retailer from whom the watch was purchased.
  • P
    pamelasimpsonSep 1, 2025
    Why does my Seiko 4R36 Watch gains or loses time?
    • I
      Isaiah FosterSep 1, 2025
      If your Seiko 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. If your Seiko 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. If you dropped the watch, hit it against a hard surface or wore it while playing active sports or the watch was exposed to strong vibrations, normal accuracy will not resume and you should consult the retailer from whom the watch was purchased. If the watch has not been overhauled for more than 3 years, consult the retailer from whom the watch was purchased.
  • J
    Jeffery StoneSep 3, 2025
    What to do if date changes at 12 o’clock noon on Seiko 4R36?
    • J
      Joshua GreeneSep 3, 2025
      The date on your Seiko Watch might be changing at 12 o’clock noon because the AM/PM is not properly set. To resolve this, advance the hands by 12 hours.
  • A
    Adam WilliamsSep 7, 2025
    What to do if Seiko 4R36 gains/ loses time temporarily after contact with magnetic object?
    • F
      Franklin FrenchSep 7, 2025
      If your Seiko watch gains or loses time temporarily because it was brought into close contact with a magnetic object, the normal accuracy will resume when the watch is kept away from the magnetic source. If this continues, consult the retailer.
  • D
    Donald NielsenSep 9, 2025
    How to fix Seiko 4R36 Watch when the date changes at noon?
    • M
      Michele WestSep 9, 2025
      If the date on your Seiko Watch changes at 12 o’clock noon instead of midnight, it indicates that the AM/PM setting is not properly configured. To correct this, advance the hands by 12 hours.

Summary

Handling Cautions

General Safety and Usage

Covers warnings on corrosion, protruding pins, child safety, environment, and skin.

Mechanical Watch Characteristics

Names of the Parts and Their Functions

Identifies and explains the various parts of the watch.

How to Wind the Mainspring

Details how to start and wind the watch's mainspring.

Setting Time and Date (4 R35)

Setting Time, Date, and Day (4 R36)

Setting Time, 24-Hour Hand, and Date (4 R37)

Setting Time (4 R38;4 R71;4 R72)

Setting Time and 24-Hour Hand (4 R39)

Daily Care

Water Resistant Performance

Magnetic Resistant Performance

Band Care and Types

Special Clasps

After Sales Service

Guarantee and Repair Information

Details on warranty, service centers, and repair procedures.

Accuracy of Mechanical Watches

Factors Affecting Accuracy

Discusses daily rate, temperature, and mainspring status impacts.

Troubleshooting

Watch Stops Operating

Solutions for a watch that has stopped working.

Seiko 4R36 Specifications

General IconGeneral
Caliber4R36
TypeAutomatic
Jewels24
Vibrations per hour21, 600
Power reserve41 hours
FunctionsDate, Day, Hour, Minute, Second
HackingYes
Accuracy-35/+45 seconds per day

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