Seiko 8T63A Technical Manual Download Page 5 | Manualshive

Page: 5 / 19

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Cal. 8T63A

PARTS LIST

5/19

HOUR WHEEL

0273***

8

9 SWITCH LEVER

HOLDER SCREW

0012354

10

11

12

14

13

SWITCH LEVER

HOLDER

0837005

SWITCH LEVER A

4450017

SWITCH LEVER B

4450018

DATE CORRECTOR

SETTING

TRANSMISSION

WHEEL B

0962013

DATE CORRECTOR

SETTING TRANSMISSION

WHEEL C

0962891

For parts , please refer to the page 10.

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Summary of Contents for 8T63A

Page 1: ...e stopwatch in one second increments Second hand stop function Energy depletion forewarning function The second hand moves at two second interals 4002054 COIL BLOCK A 1 45 1 65 K Use 10 second gate SE...

Page 2: ...depletion forwarding function The time is indicated by the 24 hour hour and minute hands and a small second hand The stop watch can measure up to 60 minutes in one second increments After 60 minutes i...

Page 3: ...cordance with a time signal Crown Watch starts moving with 2 second interval for 10 seconds Wait until it moves with 1 second interval Do not move the crown before it ends Button B Press Button B for...

Page 4: ...JUMPER 0810019 DATE CORRECTOR WHEEL 0806002 INTERMEDIATE SMALL HOUR HAND WHEEL AND PINION 0817048 SMALL HOUR HAND WHEEL 0157 Cross section 7 3 For parts and please refer to the page 10 Disassembling...

Page 5: ...ER HOLDER SCREW 0012354 10 11 12 14 13 SWITCH LEVER HOLDER 0837005 SWITCH LEVER A 4450017 SWITCH LEVER B 4450018 DATE CORRECTOR SETTING TRANSMISSION WHEEL B 0962013 DATE CORRECTOR SETTING TRANSMISSION...

Page 6: ...25 TRAIN WHEEL STOP LEVER 0894002 26 HAMMER OPERATING LEVER A 0587004 20 HAMMER OPERATING LEVER B 0587006 HAMMER 0585013 15 SWITCH SPRING SCREW 0016121 21 SECOND COUNTING WHEEL 0888 22 POSITIONING ARB...

Page 7: ...4270336 35 SECOND COUNTER INTERMEDIATE WHEEL AND PINION 0885003 38 COIL BLOCK SCREW 0012354 39 COIL BLOCK A 4002054 40 STEP ROTOR 4146063 41 STATOR A 4239063 34 MINUTE COUNTER INTERMEDIATE WHEEL AND P...

Page 8: ...24 60 CLUTCH WHEEL 0282452 61 DATE CORRECTOR SETTING TRANSMISSION WHEEL A 0962032 59 WINDING STEM 0351177 44 THIRD WHEEL AND PINION 0231059 45 FOURTH WHEEL AND PINION 0144002 46 MINUTE WHEEL AND PINIO...

Page 9: ...A PARTS LIST 9 19 Tools and consumables required for disassembling reassembling Movement holder UNIVERSAL MOVEMENT HOLDER S 682 Watch oils SEIKO watch oil AO 3 or Moebius A and AO 2 or Moebius F AO 3...

Page 10: ...7 SMALL HOUR HAND WHEEL 8 HOUR WHEEL 16 SWITHCH SPRING 22 SECOND COUNTING WHEEL 24 MINUTE COUNTING WHEEL 49 CENTER WHEEL AND PINION 56 SECOND WHEEL Please refer to the following table in order to find...

Page 11: ...normal 0 position A How to remove or install the battery 1 Remove the hook of the switch spring s battery clamp 2 Insert the battery sideways and have the hook of the switch spring s battery clamp cat...

Page 12: ...uld be done on the pointed spot of marked place 1 1 1 1 Switch spring Oiling spot and spring setting position 16 2 3 3 2 Chronograph coupling lever 19 Setting position Switch spring 16 Oiling should b...

Page 13: ...19 Hammer operating lever B 20 Hammer 21 2 3 4 1 1 2 3 4 Setting position Remarks for setting position of the SWITCH LEVER A and B 1 2 Chronograph coupling lever Hammer operating lever A Switch spring...

Page 14: ...IME 2 S 2 Connect the probe to the battery connection and probe to the other metal part of the move ment such as battery clamp or circuit block cover 3 Wait approximately for 10 seconds until a stable...

Page 15: ...e resistance of each coil block if they are within the range in the following table 1 45 K 1 65 K 1 65 K 1 85 K COIL BLOCK A COIL BLOCK B 4002054 4002055 Structure of the CIRCUIT BLOCK Input terminal...

Page 16: ...ach other o f t o u c h i n g t h e surface of the dial or inside of the glass M a k e s u r e t h a t t h e d a y c h a n g e s smoothly Calendar mechanism correcting the day Make sure that the date...

Page 17: ...R WATER RESIST 10BAR 10 BAR WATER RESIST 15BAR 15 BAR WATER RESIST 20BAR 20 BAR SCUBA DIVER S AIR DIVER S 150 m 18 75 BAR 150 m times 0 125 SCUBA DIVER S AIR DIVER S 200 m 25 BAR 200 m times 0 125 He...

Page 18: ...parts wringing Remove dirt or dust and clean the contaminated wheels Be careful so as not to damage the teeth of the plastic parts while cleaning The current consumption for the whole movement exceeds...

Page 19: ...tely The circuit block pattern has been broken or bent Adjust the circuit block pattern or replace the circuit block with a new one The crown falls off The winding stem is not securely installed The s...

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