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Version-01

Cal.VK68A

5.To remove the winding stem

1) Set the winding stem to normal position.
2) Pull out the winding stem while pushing "A".

Push "A"

6.To remove or install the battery

1) Remove the hook of the switch spring's battery clamp.

Switch spring

Battery clamp

1) When Removing

Main plate

2) When Installing

7.Remarks on installing the battery

1) After the battery is replaced with a new one, or after the

 battery is reinstalled following the repairing procedures,
 be sure to touch the AC terminal of circuit block and
 the switch spring with conductive tweezers to reset

Tweezers

 the circuit as illustrated.

TECHNICAL  GUIDE

11

2) Insert the battery sideways, and have the hook of the switch spring's battery clamp catch the
    main plate.

16

 

Summary of Contents for VK68A

Page 1: ...ANALOGUE QUARTZ TECHNICAL GUIDE PARTS CATALOGUE Cal VK68A 19032021 ...

Page 2: ...ing stem with crown at the normal position 24 hour indicator 2H Driving system Two pole stepping motor Step motor 2 pieces Additional mechanism Date display with quick correction Electronic circuit reset switch Time setting with stop second 2 Hands hour minute Small second hand 6H Date Calendar Center chronograph 1 5 second 60 minutes counter 10H 1 SPECIFICATION Cal No VK68A Item Movement size Out...

Page 3: ...bius 9030 SUFFICIENT QUANTITY 0012 354 0808 052 Date indicator maintaining plate 0810 019 Date jumper 0806 002 Date corrector wheel 0817 048 0157 012 Small hour hand wheel Cross section 2 PARTS CATALOGUE Date indicator maintaining plate screw Refer to page 7 for each parts code Intermediate small hour hand wheel and pinion 1 1 60 60 1 1 2 3 4 5 6 7 1 ...

Page 4: ...030 SUFFICIENT QUANTITY 0273 041 Hour wheel 0012 354 Switch lever holder screw 0837 007 Switch lever holder 4450 017 Switch lever A 4450 018 Switch lever B 0962 891 0962 013 Refer to page 10 for spring setting position 3 Date corrector setting transmission wheel C Date corrector setting transmission wheel B PARTS CATALOGUE 1 1 60 60 1 11 12 13 10 8 9 14 1 ...

Page 5: ... Switch spring 0353 018 0190 009 Chronograph bridge 0581 007 0587 008 Chronograph coupling lever 0585 015 Hammer 0894 002 0888 270 0902 017 Minute counting 0587 004 wheel Refer to page 9 for oiling spot Refer to page 10 for setting position 4 PARTS CATALOGUE Train wheel stop lever Seconds counting wheel friction spring Hammer operating lever A Hammer operating lever B Seconds counting wheel 1 1 60...

Page 6: ...46 063 Step rotor 0886 005 4239 063 Stator A 0701 015 Refer to page 9 for oiling spot Refer to page 8 for assembling of chronograph wheel Fifth wheel and pinion Counter intermediate wheel and pinion Minute counter intermediate wheel and pinion A 5 PARTS CATALOGUE 0886 007 0886 006 Minute counter intermediate wheel C Minute counter intermediate wheel B Seconds counter intermediate wheel and pinion ...

Page 7: ...oil block screw 0281 452 Setting wheel 4002 055 Coil block B 4283 042 Center wheel and 4146 063 pinion bridge Step rotor 0221 091 4239 064 Stator B 0701 015 0383 891 0384 024 Yoke 0282 452 0240 018 Clutch wheel Seconds wheel 0962 032 0351 177 Winding stem 6 PARTS CATALOGUE Fourth wheel and pinion Minute wheel and pinion Center wheel and pinion Fifth wheel and pinion Setting lever Date corrector se...

Page 8: ...ks Date indicator All parts code are subject to change without notice 0878 328 3H 3H 4 5H Black White 7 PARTS CATALOGUE Parts code Crown position Date position Color of figure Color of background 0878 329 3H 3H 4 5H White Black ...

Page 9: ...3 Seconds counter intermediate wheel and pinion 0886 004 Counter intermediate wheel and pinion 0886 005 Minute counter intermediate wheel and pinion A Mark positions and sizes etc are different G Minute counter intermediate wheel C 8 TECHNICAL GUIDE Cal VK68 Mark Parts name B Minute counter intermediate wheel and pinion A C Counter intermediate wheel and pinion Nil Seconds counter intermediate whe...

Page 10: ...ge of the arrow Lower plate for chronograph bridge Note Switch spring Oiling spot and spring setting position Chronograph coupling lever Setting position Switch spring 9 TECHNICAL GUIDE Oiling should be done on the contact spot of the spring and the pin 1 Oiling should be done on the pointed spot of marked place Hammer operating lever B 2 3 1 1 1 1 2 3 19 21 20 16 ...

Page 11: ...er A and B setting position Switch spring Switch spring Switch lever B Switch lever A Hammer operating lever A Chronograph coupling lever 10 Switch lever B is set between the switch spring and hammer operating lever A TECHNICAL GUIDE Setting position Switch lever A is set between the switch spring and chronograph coupling lever 1 2 4 1 2 3 20 21 24 1 2 3 4 19 25 27 16 1 2 11 12 19 25 16 Enlarged v...

Page 12: ...hen Removing Main plate 2 When Installing 7 Remarks on installing the battery 1 After the battery is replaced with a new one or after the battery is reinstalled following the repairing procedures be sure to touch the AC terminal of circuit block and the switch spring with conductive tweezers to reset Tweezers the circuit as illustrated TECHNICAL GUIDE 11 2 Insert the battery sideways and have the ...

Page 13: ... use new hands Note To install 24 hour hand Before installing 24 hour hand pull out the crown to the second click position and rotate it clockwise until changed to the next date then install the 24 hour hand 9 How to check correct hands attachment The hand s top surface should be set parallel with the axis tip as shown below 1 2 Application hands 1 Second chronograph hand 2 Minute chronograph hand...

Page 14: ...itch spring with conductive tweezers to reset the circuit 3 The small second hand will move at two second interval for 10 seconds 1 Pull out the crown to the second click position Method 2 2 Press the button B for two seconds and release the button 3 Push the crown back to the normal position 4 The small second hand will move at two second interval for 10 seconds If the crown is operated within th...

Page 15: ...e chronograph stops after a measurement for 60 minutes Restart by pushing button A During the chronograph operation button B reset can be pushed There is no problem with the function Accumulated elapsed time measurement A A B Restart and stop of the chronograph can be repeated as many times as necessary by pressing button A HOW TO USE THE CHRONOGRAPH OPERATION Button A START Button A STOP Button B...

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