Seiko 5M54A Technical Manual Download

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Cal. 5M54A

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PARTS LIST

Please see the remarks on the following pages.
Lubricating of some parts is shown in “ II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

50 0125661

TRAIN WHEEL BRIDGE

0391660

TRAIN WHEEL SETTING LEVER

52 4271515

RECHARGEABLE BATTERy

CONNECTION (+)

53 0241667

FOURTH WHEEL AND PINION

55 0701670

FIFTH WHEEL AND PINION

56 4146531

STEP ROTOR

57 0261670

MINUTE WHEEL

58 0281670

SETTING WHEEL

59 4450730

SWITCH LEVER

60 0384661

yOKE

0383662

SETTING LEVER

62 4239518

ROTOR STATOR

SETTING STEM

63 0282672

CLUTCH WHEEL

64 0221667

CENTER WHEEL AND PINION

65 01006564 (FOR STANDARD CASE TyPE)

0100659 (FOR ONE-PIECE CASE TyPE)

MAIN PLATE

54 0231530

THIRD WHEEL AND PINION

49 0022247

TRAIN WHEEL BRIDGE SCREW

[GEAR TRAIN MECHANISM/

SETTING MECHANISM]

TG 5M54A.indd 6

08.9.25 2:14:41 PM

Summary of Contents for 5M54A

Page 1: ...e measurement Current consumption Power supply Operating voltage range D u r a t i o n o f charge Number of jewels Interval of hands movements Normal position 1st click position 2nd click position Coil resistance MON TUE W E D TH U FRI SA T S U N 3 hands Hour Minute Second Calendar Date date dial Day retrograde day indicator 1 second Stepping motor 2 pieces Power reserve indicator second hand Ener...

Page 2: ...er The second hand will start moving at one second intervals Set the crown to the 5M position Make sure that the watch is correctly positioned as it may affect the amount of power generated The amount of power generated may vary depending the models of the watch 5M Cal 5M54A is equipped with a power reserve indicator The current power reserve can be checked by reading the posisiton of the second h...

Page 3: ... Oil quantity Normal quantity Please see the remarks on the following pages Lubricating of some parts is shown in II REMARKS ON DISASSEMBLING AND REASSEMBLING 1 Case back 2 Case back gasket 4 4281500 Contact point spring 5 Movement 8 Button spring 6 Button spring clip 7 Button The contact point spring is not assembled in models with screw lock type crown 3 SETTING stem CASING PARTS ASSEMBLY ...

Page 4: ...TE CORRECTOR WHEEL 0816670 DATE DRIVING WHEEL 0271607 HOUR WHEEL DAY LEVER BRIDGE 0866780 HOLDING RING FOR DIAL 12 13 14 15 16 17 18 19 20 21 22 23 24 25 SPACER FOR DIAL 11 4408564 4408559 29 X II I II I I I I I I I I I V V I V V II I X I X XI SEIKO PREMIER KINETIC M O N TU E WE D TH U F R I SA T SU N RETROGRADE DAY HAND DIAL HOUR MINUTE AND SECOND HANDS 9 10 Cal 5M54A 22 Partslist Please see the ...

Page 5: ... clamp 36 302344Z Rechargeable battery unit 37 0022247 Circuit block cover screw 38 4457760 Circuit block cover 39 4000732 Circuit block 40 0022247 Oscillating weight bridge screw 41 4459500 Conductive plate 42 0198662 Oscillating weight bridge 43 4002514 Generating coil block 44 1002660 Intermediate wheel for generating rotor 35 4216519 Insulator for rechargeable battery 45 4146518 Generating rot...

Page 6: ...urth wheel and pinion 55 0701670 Fifth wheel and pinion 56 4146531 Step rotor 57 0261670 Minute wheel 58 0281670 Setting wheel 59 4450730 Switch lever 60 0384661 Yoke 61 0383662 Setting lever 62 4239518 Rotor stator 3 SETTING stem 63 0282672 Clutch wheel 64 0221667 Center wheel and pinion 65 01006564 For standard case type 0100659 For one piece case type Main plate 54 0231530 Third wheel and pinio...

Page 7: ...to choose corresponding parts Remarks 4 Contact point spring 4281500 The contact point spring is not assembled in models with screw lock type crown 12 Holding ring for dial 0866780 23 Date dial Part code Position of crown Position of calendar frame Color of figure Color of background 0878 B42 3 o clock 3 o clock White Black 0878 B43 3 o clock 3 o clock Black White 0878 B25 3 o clock 6 o clock Whit...

Page 8: ...iscriminated by the shapes of their minus lead terminals as illustrated below When repairing the rechargeable battery unit check the shape of its minus lead terminal to make sure you are using a rechargeable battery unit properly Minus lead terminal Rechargeable battery unit for Cal 5M54 and 5M6 Series Part code 302344Z Marking on the battery maxell TC920 Capacitor unit for Cal 5M4 Series Part cod...

Page 9: ... it has no diode element to make sure you are using the proper one Having no diode element Diode element Circuit block for Cal 5M54 and 5M6 Series Circuit block for Cal 5M4 Series 43 Generating coil block 4002514 The generating coil block for Cal 5M54 and 5M6 Series and that for Cal 5M4 Series have a close resemblance in shape They can be discriminated by the size of the pattern on the lead termin...

Page 10: ...54A 10 22 Partslist l Tools and consumables required for disassembling reassembling Movement holder Universal movement holder S 682 Watch oils SEIKO watch grease S 6 and watch oils AO 3 and AO 2 S 6 AO 2 AO 3 ...

Page 11: ... Switch lever 60 Yoke 61 Setting lever Setting position and lubricating Refer to the illustration at right Train wheel setting lever Setting lever Switch lever Yoke l SETTING MECHANISM Crown position 1st click position Push the SETTING LEVER gently refer to the picture on the right in order to disengage it from the SETTING STEM Then pull out the crown with stem completely Push here ...

Page 12: ...to the illustrations below for the setting position and lubrication of the respective wheels Fifth wheel and pinion Step rotor Setting wheel Fourth wheel and pinion Minute wheel Third wheel and pinion Center wheel and pinion Step rotor Fifth wheel and pinion Fourth wheel and pinion Third wheel and pinion 64 Center wheel and pinion Note Be sure to observe the position type of oil and quantity of lu...

Page 13: ...ery plus terminal ﾒBﾓ portion 40 Oscillating weight bridge screw 42 Oscillating weight bridge Before tightening the oscillating weight bridge screw check that the upper pivot of the generating rotor is inserted properly into the pivot jewel Be sure to lubricate the upper and lower pivots of generating rotor and intermediate wheel for generating rotor with the proper oil in the quantity specified i...

Page 14: ...wheel are at the 1st day position by listening the sound when changing the day 1 Turnthecrownclockwiseatthefirstclickpositionuntil you hear the unique sound when changing from 7th day to 1st day 2 Install the hand pointing to the 1st day MON position MON TUE W E D T H U FRI S A T S U N 3 Make sure the day changes correctly and smoothly by turning the crown at the first click position MON TUE W E D...

Page 15: ...ntact point spring and holding ring for dial and pry up the contact point spring slowly to remove it How to install 1 Push the hooking portion A in the direction of the arrow in the illustration at right to insert it into a gap between the main plate and holding ring for dial 2 Insert the hooking portions B and C into a gap between the holding ring for dial and case In doing so the installation wi...

Page 16: ...the oscillating weight wheel 32 and oscillating weight 31 and tighten the screw 30 temporary in order to make the movement ready for measurement 2 Connect the probe of the tester to the input terminal of the circuit block and probe to the other metal part of the movement such as circuit block cover a portion Circuit block cover When measuring the current consumption using the SEIKO digital multi t...

Page 17: ...ent detects the electricity generation and it turns to the normal hand movement mode Note When swinging the oscillating weight take care so as not to touch the probes of the tester 4 Wait for more than 10 seconds until a stable measurement is obtained and then read the measurement 5 Make sure the read value is less than 0 80 μA ...

Page 18: ...fer to Structure of the circuit block below When measuring the current consumption using the SEIKO digital multi tester S 860 use the range of 40 μ A of SUPPLY V 1 55 V GATE TIME 2 S 2 In order to turn the mode of the C MOS IC into the normal hand movement mode short circuit it by touching A portion and the input terminal with tweezers for more than three seconds When measuring the current consump...

Page 19: ... measure the voltage of the rechargeable battery The obtained voltage is called the initial voltage Notes When applying the minus probe of the testertotherechargeablebattery take care not to short circuit the lead terminal and the rechargeable battery clamp If a short circuit has occurred leave the watch untouched for more than 10 minutes andmeasurethevoltageagain checking that a stable measuremen...

Page 20: ...ate and day if available Make sure that the date and day changes smoothly MON TUE W E D TH U FRI SA T S U N Pull out the crown to the 2nd click then turn it Second hand stop function if available Make sure that the second hand stops when the crown is Setting mechanism hour and minute Make sure that the hour and minute hands move smoothly without touching each other or touching the surface of the d...

Page 21: ...r overpressure test 3 BAR WATER RESIST 5BAR Water overpressure test and condensation test 5 BAR WATER RESIST 10BAR 10 BAR WATER RESIST 15BAR 15 BAR WATER RESIST 20BAR 20 BAR SCUBA DIVER S AIR DIVER S 150 m Water tightness and water overpressure test and condensation tests before after water overpressure test 18 75 BAR 150 m times 0 125 SCUBA DIVER S AIR DIVER S 200 m 25 BAR 200 m times 0 125 He GA...

Page 22: ...d replace and lubricate the generating rotor Overhaul and clean if necessary The current consumption for the whole of the movement exceeds the standard value 1 When the measurement is made the IC is still in the quick start mode When the current consumption measures about 200μA it is likely that the IC is in the quick start mode 2 The load applied on the gear train etc has increased and the drivin...

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