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Version-01

Cal.VK6 Series

(VK61A/64A)

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.
2) Insert the battery sideways, and 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 tweezers to
 reset the circuit as illustrated.

TECHNICAL  GUIDE

11

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Summary of Contents for VK6 Series

Page 1: ...ANALOGUE QUARTZ TECHNICAL GUIDE PARTS CATALOGUE Cal VK6 Series VK61A 64A 11032021...

Page 2: ...10 mm O O Battery SR936SW Silver oxide battery Battery life is approximately 3 years 60 minutes chronograph operation per day Driving system Two pole stepping motor Step motor 2 pieces Additional mec...

Page 3: ...9030 SUFFICIENT QUANTITY 0012 354 0808 052 Date indicator maintaining plate 0810 019 Date jumper 0806 002 Date corrector wheel Refer to page 7 for each parts code Cross section PARTS CATALOGUE Date in...

Page 4: ...ebius 9030 SUFFICIENT QUANTITY 0273 041 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 fo...

Page 5: ...ridge VK64 only VK61 only 0581 007 0587 006 0585 013 Hammer 0888 027 0587 004 Refer to page 7 for each parts code Refer to page 9 for oiling spot Refer to page 10 for spring setting position 4 PARTS C...

Page 6: ...2 354 Coil block screw 0886 004 4002 054 Coil block A 0886 005 4146 063 Step rotor 4239 063 Stator A VK64 only VK61 only Refer to page 9 for oiling spot Refer to page 8 for assembling of chronograph w...

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 Cl...

Page 8: ...878 328 3H 3H 4 5H Black White 0878 329 3H 3H 4 5H White Black Cal Parts code Crown position Date position 0902 017 Old parts New parts No No No O 0902 017 Minute counting wheel O 0685 003 Positioning...

Page 9: ...ter intermediate wheel and pinion Minute counter intermediate wheel and pinion A Minute counter intermediate wheel C Minute counter intermediate wheel B Nil Seconds counter intermediate wheel and pini...

Page 10: ...range 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...

Page 11: ...position Switch spring Switch spring Switch lever B Switch lever A Hammer operating lever A Chronograph coupling lever 10 Hammer operating lever B Setting position Switch lever A is set between the sw...

Page 12: ...eways and 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 t...

Page 13: ...ands Note To install 24 hour hand for VK64 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 hou...

Page 14: ...weezers to reset the circuit 3 The small second hand will move at two second interval for 10 seconds VK61 only 1 Pull out the crown to the second click position Method 2 2 Press the button B for two s...

Page 15: ...apsed time will be reset to 0 position Note The chronograph can measure up to 60 minutes The chronograph stops after a measurement for 60 minutes Restart by pushing button A Accumulated elapsed time m...

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