background image

Version-01

Cal.VK83A

3.Spring setting position

Train wheel stop lever

Lower plate for chronograph bridge

Hammer operating lever (A)

Hammer

Chronograph coupling lever

4.Switch lever (A) and (B) setting position

Switch spring

Switch spring

Switch lever (B)

Switch lever (A)

Hammer operating lever (A)

Chronograph coupling lever

Switch lever (B) is set between the switch
spring and hammer operating lever (A) .

Switch lever (A) is set between the switch
spring and chronograph coupling lever.

TECHNICAL  GUIDE

10

Hammer
operating lever
(B)

Setting position

*1

*2

*3

*4

*1

*2

Enlarged view

16

 

*1

*2

*3

*4

19

 

20

 

21

 

25

 

26

 

28

 

*1

*2

19

 

16

 

26

 

11

 

12

 

Summary of Contents for VK83A

Page 1: ...ANALOGUE QUARTZ TECHNICAL GUIDE PARTS CATALOGUE Cal VK83A 11032021 ...

Page 2: ...4 hour indicator 3H 2 Hands hour minute Small second hand 6H SPECIFICATION 1 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 Battery SR936SW Silver oxide battery Battery life is approximately 3 years 60 minutes chronograph operation per day Antimagnetic 1600 A m Jewels 0...

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 Refer to page 7 for each parts code Intermediate small hour hand wheel and pinion 2 Date indicator maintaining plate screw PARTS CATALOGUE 1 1 2 3 4 5 6 7 1 61 1 61 1 ...

Page 4: ...030 SUFFICIENT QUANTITY 0273 038 Hour wheel 0012 354 Switch lever holder screw 0837 005 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 PARTS CATALOGUE 3 Date corrector setting transmission wheel C Date corrector setting transmission wheel B 1 11 12 13 10 8 9 14 1 61 1 61 1 ...

Page 5: ...3 018 0190 007 Chronograph bridge 0587 006 0581 007 0585 013 Hammer 0888 028 0685 003 0587 004 Positioning arbor 0902 017 Minute counting wheel Refer to page 9 for oiling spot Refer to page 10 for spring setting position 4 Seconds counting wheel friction spring Chronograph coupling lever Hammer operating lever B 0894 002 Train wheel stop lever Seconds counting wheel Hammer operating lever A PARTS ...

Page 6: ...86 005 4146 063 Step rotor 0701 015 4239 063 Stator A Refer to page 9 for oiling spot Refer to page 8 for assembling of chronograph wheel Lower plate for chronograph bridge screw Circuit block spacer Counter intermediate wheel and pinion Minute counter intermediate wheel B Minute counter intermediate wheel C 0886 006 0886 007 Battery connection PARTS CATALOGUE Minute counter intermediate wheel and...

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 087 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 Fourth wheel and pinion Minute wheel and pinion Center wheel and pinion Fifth wheel and pinion Setting lever Date corrector setting transmissi...

Page 8: ...ease order new one 0902 017 Date indicator All parts code are subject to change without notice Color of figure Color of background 0878 328 3H 3H 4 5H Black White Parts code Crown position 7 0878 329 3H 3H 4 5H White Black Date position 0902 017 PARTS CATALOGUE Old parts New parts No No ...

Page 9: ... Seconds counter intermediate wheel and pinion Counter intermediate wheel and pinion Minute counter intermediate wheel and pinion A Mark positions and sizes etc are different Seconds counter intermediate wheel and pinion F Minute counter intermediate wheel B Counter intermediate wheel and pinion 8 TECHNICAL GUIDE Cal VK83 Mark Parts name B Minute counter intermediate wheel and pinion A C G Minute ...

Page 10: ...of the arrow Lower plate for chronograph bridge Note Switch spring Oiling spot and spring setting position Chronograph coupling lever Setting position Switch spring Oiling should be done on the contact spot of the spring and the pin TECHNICAL GUIDE 9 1 Oiling should be done on the pointed spot of marked place Hammer operating lever B 2 3 28 16 21 2 3 19 16 20 1 1 1 1 ...

Page 11: ...on Switch spring Switch spring Switch lever B Switch lever A Hammer operating lever A Chronograph coupling lever Switch lever B is set between the switch spring and hammer operating lever A Switch lever A is set between the switch spring and chronograph coupling lever TECHNICAL GUIDE 10 Hammer operating lever B Setting position 1 2 3 4 1 2 Enlarged view 16 1 2 3 4 19 20 21 25 26 28 1 2 19 16 26 11...

Page 12: ...nd have the hook of the switch spring s battery clamp catch the main plate 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 Tweezers 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 t...

Page 13: ...ge and 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 2 Application hands 1 Second chronograph hand 2 Chronograph min...

Page 14: ...weezers 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 this 10 seconds the two second ...

Page 15: ...to 0 position Note The chronograph can measure up to 20 minutes The chronograph stops after a measurement for 20 minutes Restart in the following procedure During the chronograph operation button B reset can be pushed There is no problem with the function Accumulated elapsed time measurement A A B OPERATION 14 Button A START Button A STOP Button B RESET HOW TO USE THE CHRONOGRAPH Press the buttons...

Reviews: