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Second date jumper spring

Second date jumper

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

TECHNICAL  GUIDE

VK73

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.

Version-02

8

6

24

24

18

Setting position

SII Products

11

27

19

34

*2

 

*3

 

Enlarged view

 

*2

 

*3

 

*1

 

*1

 

Summary of Contents for VK73

Page 1: ...SII Products ANALOGUE QUARTZ TECHNICAL GUIDE PARTS CATALOGUE Cal VK73 Revised on 29 Feb 2016 ...

Page 2: ...ding stem with crown at the normal position φ30 80 mm 29 10 mm 3H 9H φ29 00 mm 5 90 mm Small second hand 6H Chronograph 1 5 center second 60 Minutes 9H Outside diameter Casing diameter Date display with quick correction Electronic circuit reset switch Time setting with stop second Less than 20 seconds Monthly rate at normal temperature range SR936SW Silver oxide battery Battery life is approximate...

Page 3: ... 055 0810 023 Date indicator maintaining plate Second date jumper Refer to page 11 for spring setting position First date indicator Refer to page 7 for each parts code Refer to page 12 for setting method 0353 180 Second date jumper spring 0012 354 Operating lever spring screw 0571 009 Operating lever Refer to page 10 for 0578 004 spring setting position Operating lever spring 1 䊻 69 PARTS CATALOGU...

Page 4: ... 005 Switch lever holder 4450 018 4450 017 Switch lever B Switch lever A Refer to page 11 for Refer to page 11 for setting position setting position 0962 891 Date corrector setting transmission wheel C 0810 022 0962 013 Date jumper Date corrector setting transmission wheel B 22 16 Cross section 21 20 PARTS CATALOGUE 14 12 15 VK73 SII Products 3 Version 01 17 18 19 13 2 2 1 1 ...

Page 5: ...006 0581 007 0585 013 Chronograph coupling lever Hammer 0894 002 Train wheel stop lever 0888 030 0685 003 Positioning arbor 0587 004 Hammer operating lever A 0902 019 Minute counting wheel Hammer operating lever B 26 23 33 27 28 29 30 4 34 Refer to page 9 for oiling spot Refer to page 10 for spring setting position 32 SII Products Seconds counting wheel 31 VK73 24 25 PARTS CATALOGUE Version 02 23 ...

Page 6: ...heel and pinion 4239 063 Stator A Counter intermediate wheel and pinion 45 46 Version 02 40 35 PARTS CATALOGUE VK73 Minute counter intermediate wheel C 0886 007 Minute counter intermediate wheel and pinion A Seconds counter intermediate wheel and pinion SII Products 0886 006 43 42 Minute counter intermediate wheel B 47 49 44 41 Lower plate for chronograph bridge screw 5 36 37 38 39 Refer to page 9...

Page 7: ...3 042 Coil block B 4146 063 Step rotor 0221 088 4239 064 Stator B 0383 891 0701 015 0384 024 Yoke 0240 020 Seconds wheel 0282 452 Clutch wheel 0962 012 0351 177 Winding stem 64 65 63 pinion Fifth wheel and pinion 57 62 66 pinion bridge Center wheel and Center wheel and 51 53 54 58 Setting lever 55 59 60 56 61 PARTS CATALOGUE VK73 6 Version 01 SII Products 68 69 Date corrector setting transmission ...

Page 8: ...H 12H Black White All parts code are subject to change without notice 7 SII Products Color of background First date indicator Second date indicator Version 02 Part code Position of crown Position of Date frame Color of figure PARTS CATALOGUE VK73 ...

Page 9: ...termediate wheel and pinion A Minute counter intermediate wheel C Minute counter intermediate wheel B Counter intermediate wheel and pinion Minute counter intermediate wheel and pinion A 8 SII Products 44 G 41 41 42 Mark Parts name 42 43 Seconds counter intermediate wheel and pinion Nil F Minute counter intermediate wheel B Counter intermediate wheel and pinion 45 B C 43 Minute counter intermediat...

Page 10: ...hronograph bridge Note Switch spring Oiling spot and spring setting position Chronograph coupling lever Hammer operating lever B Setting position Switch spring SII Products 9 29 36 24 27 28 Version 02 24 1 Oiling should be done on the pointed spot of marked place TECHNICAL GUIDE VK73 Oiling should be done on the contact spot of the spring and the pin 1 1 1 1 2 3 2 3 ...

Page 11: ...hronograph bridge Hammer operating lever A Hammer Hammer operating lever B Chronograph coupling lever Operating lever Operating lever spring SII Products 10 33 36 34 29 28 11 9 TECHNICAL GUIDE VK73 27 Setting position Version 01 Setting position 1 1 2 2 3 3 4 4 5 5 5 ...

Page 12: ...tch lever A Hammer operating lever A Chronograph coupling lever TECHNICAL GUIDE VK73 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 Version 02 8 6 24 24 18 Setting position SII Products 11 27 19 34 2 3 Enlarged view 2 3 1 1 ...

Page 13: ...ut crown to first click and turn it by clockwise to set the data Date display 05 day changes to 10 day 䚷 䚷 ὀグ Note If date display does not change to 10 day remove the second date indicator from movement and turn crown by clockwise until the first date indicator back to 1 1 situation then do 2 again Wheel of operating lever Wheel of second date indicator 3 When the date indicators were set properl...

Page 14: ...witch spring s battery clamp catch the main plate Switch spring Battery clamp 1 When Removing Main plate 2 When Installing 8 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 Tweezers be sure to touch the AC terminal of circuit block and the switch spring with conductive tweezers to reset the circ...

Page 15: ...ote 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 10 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 and Small seco...

Page 16: ...ve 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 interval movement will not activate Note It is not necessary...

Page 17: ... 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 䡡䡡䡡 B Restart and stop of the chronograph can be repeated as many times as necessary by pressing button A STOP RESET 8 minutes 40 seconds 20 minutes 10 seconds START STOP RESTART 16 SII Products Press ...

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