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Seiko 5J22A Technical Manual

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PARTS CATALOGUE / TECHNICAL GUIDE
[SPECIFICATIONS]
Item
Movement
Movement
Outside diameter
size
Casing diameter
Height
Time indication
Driving system
Additional mechanism
Loss/gain
Regulation system
Measuring gate by quartz tester
Power
Power generator
supply
Electricity Storage
Unit (E.S. Unit)
Operating voltage range
Duration of charge
Jewels
Cal. 5J22A
PARTS CATALOGUE / TECHNICAL GUIDE (p. 1 – 21)
CATÁLOGO DE PARTES / GUÍA TÉCNICA (p. 23 – 43)
Cal. No.
ø26.4 mm
ø25.6 mm
3.95 mm
3 hands Hour and minute hands move at 10-second intervals.
• Step motor (Load compensated driving pulse type, 2 pieces)
• Automatic generating system
• Energy depletion forewarning function
• Overcharge prevention function
• Electronic circuit reset switch
• Train wheel setting device
• Date calendar
• Instant setting device for date calendar
• Automatic power save function
• Manual power save function
• Time relay function
Monthly rate at normal temperature range: less than 15 seconds
Nil
Use 10-second gate.
Automatic generating system
Titanium lithium ion rechargeable battery
0.45 V ~ 2.5 V
Validity of time relay function : Approx. 4 years (Full charge)
13 jewels
5J22A
(
Second hand moves at 1-second intervals.
(x 1.0)
)
1

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Summary of Contents for Seiko 5J22A

  • Page 1 PARTS CATALOGUE / TECHNICAL GUIDE Cal. 5J22A PARTS CATALOGUE / TECHNICAL GUIDE (p. 1 – 21) CATÁLOGO DE PARTES / GUÍA TÉCNICA (p. 23 – 43) [SPECIFICATIONS] Cal. No. 5J22A Item Movement (x 1.0) Movement Outside diameter ø26.4 mm size Casing diameter ø25.6 mm...
  • Page 2 FEATURES OF CAL. 5J22A Cal. 5J22A features the power save function that automatically stops the hands from moving if the watch is left untouched for a certain period of time. When you decide to use it again, swinging the watch several times will activate the time relay function, which starts the hands moving quickly to indicate the correct time and resume the normal operation.

  • Page 3: Parts Catalogue

    Oil quantity Moebius A Normal quantity Moebius F Liberal quantity SEIKO Watch Oil S-6 Remarks on removing the winding stem Hour, minute and To remove the winding stem when taking second hands out the movement from the case or while...
  • Page 4 PARTS CATALOGUE Cal. 5J22A 0022 490 Oscillating weight screw 0500 527 Oscillating weight 0012 354 Rechargeable battery clamp screw 4225 522 Rechargeable battery clamp 4216 524 Insulator for rechargeable battery 3023 24X Rechargeable battery unit 0012 354 Circuit block cover A screw...
  • Page 5 PARTS CATALOGUE Cal. 5J22A 1002 557 Intermediate wheel for generating rotor 0012 354 Train wheel bridge screw 0125 557 Train wheel bridge 4146 522 Generating rotor 4002 525 Generating coil block 0240 557 Second wheel and pinion 0317 557 Intermediate second wheel...
  • Page 6 PARTS CATALOGUE Cal. 5J22A 0012 354 Setting lever spring screw 0388 557 Setting lever spring 0383 557 Setting lever 0384 557 Yoke 0391 557 Train wheel setting lever 4239 524 Generating stator 4239 523 Second stator 4239 522 Hour and minute stator...

  • Page 7: Technical Guide

    The type of date dial is determined based on the design of cases. (The table above does not cover all the date dial available.) Check the case number and refer to “SEIKO Casing Parts Catalogue” to choose a corresponding date dial.
  • Page 8 In case of conventional quartz movements, the hands should be installed immediately after the date changes by turning the crown. Cal. 5J22A uses a new calendar mechanism that changes without perceptible clicks, and therefore, the procedure below should be followed to install the hands.
  • Page 9 TECHNICAL GUIDE Cal. 5J22A Please insert the pivot of the Day-date corrector wheel day-date corrector wheel here. Before setting the day-date corrector wheel, check the yoke through the tracking hole of the movement. Set the wheel in such a manner that...
  • Page 10 TECHNICAL GUIDE Cal. 5J22A 14 Oscillating weight screw Oscillating weight screw · Before tightening the oscillating weight screw, check that the gear of the oscillating weight wheel securely engages with the pinion of the intermediate wheel for generating rotor (“A”...
  • Page 11 TECHNICAL GUIDE Cal. 5J22A 27 Oscillating weight bridge 29 Intermediate wheel for generating rotor 32 Generating rotor · Lubricate the ball-bearing of the oscillating weight bridge as shown below before reassembling it to the main plate. · Lubricate the upper and lower pivots and other portions of the generating rotor and intermediate wheel for generating rotor as shown in the illustration.
  • Page 12 TECHNICAL GUIDE Cal. 5J22A Second rotor Fourth wheel and pinion Third wheel and pinion Hour and minute rotor thickness the pinion Notes: • Take care not to mistake the third Note: The second rotor and hour and wheel and pinion for the intermediate minute rotor can be used inter- second wheel.
  • Page 13 Note: Take care not to bend the spring Tube of the setting lever portion more than necessary. • Lubricating See the illustration at right. Lubricating: : Moebius A : Moebius F : SEIKO Watch Oil S-6...
  • Page 14 TECHNICAL GUIDE Cal. 5J22A 50 Setting lever “A” portion 51 Yoke 52 Train wheel setting lever Yoke • Make sure that the spring portion of the yoke (“A” in the illustration) makes secure contact with the pin. Note: If a defective contact occurs between...
  • Page 15 TECHNICAL GUIDE Cal. 5J22A III. VALUE CHECKING AND ADJUSTMENT Coil block resistance Second coil block 2.00 KΩ ~ 2.45 KΩ Hour and minute coil block : Coil for driving hands : 1.00 KΩ ~ 1.20 KΩ Coil for detecting generation : 280 Ω ~ 360 Ω...
  • Page 16 TECHNICAL GUIDE Cal. 5J22A Current consumption For the whole movement Less than 0.63 µA (with 1.55 V supplied from a battery) (while the hands are moving): Less than 0.13 µA (with 1.55 V supplied from a battery) For the circuit block alone * The current consumption for the circuit block alone is approximately equivalent to that obtained while the power save function is in operation.
  • Page 17 TECHNICAL GUIDE Cal. 5J22A Notes: * Light may increase the current consumption, resulting in an inaccurate measurement. If the current consumption exceeds the standard value, protect the movement from light with a black cloth or the like after following step “3” above, and make a measurement again.
  • Page 18 Checking the manual power save and time relay functions Cal. 5J22A is equipped with the automatic and the manual power save functions to conserve the stored energy and the time relay function to start the hands moving to indicate the current time as the power save function is canceled.

  • Page 19: Troubleshooting Guide

    IV. TROUBLESHOOTING GUIDE The following are the tips on repairing Cal. 5J22A, which you will find helpful in working on the watch. Important functions characteristic of Cal. 5J22A 1) The power save function is activated after the watch is left untouched for approximately 72 hours.
  • Page 20 TECHNICAL GUIDE Cal. 5J22A Problems, causes and methods of repair See the Problems Possible causes Methods of repair and checking page below. The quickness of the 1) T h e c o i l f o r d e t e c t i n g...
  • Page 21 TECHNICAL GUIDE Cal. 5J22A See the Possible causes Methods of repair and checking Problems page below. 1) The energy stored in the 1) Swing the watch until the second hand Page 18 Swinging the watch rechargeable battery has moves at one-second intervals, and...