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[SPECIFICATION]

φ

D)

12H

6H

φ

D)

12H

6H

3 Hands ( Hour , Minute , Second )
Chronograph ( Minute , Second )
Chronograph ( 1/10 second ) 

Retrograde

Calendar
Two pole stepping motor
Step motor 3 pieces
Electronic circuit reset switch
Second setting device
[ Time ]

Indicated by the Hour , Minute , Second and Calendar

[ Stop watch ]

Up to 1 minute in 1/10 second
Up to 60 minutes in 1 second split time

SR920SW ( SEIZAIKEN ) Silver oxide battery

φ

9.5 × t 2.0 mm

Battery life is approximately 3 years
Use 10-second gate
*Set the winding stem with crown at the normal position

φ

28.80 mm  

 ×

 ( 3H - 9H )

φ

29.50 mm  

 ×

 26.00 mm    ×

Time indication

 1600 A/m

Additional mechanism

Driving

 

System

Antimagnetic

Movement

    

size

×

4.57 mm

Total height

Outside diameter

Casing diameter

 ( 3H - 9H )

1

SII Products

Less than ± 20seconds : Monthly rate at normal temperature range

Measuring gate by quartz tester

Battery

Accuracy 

Jewels 

0 Jewel

Movement

PARTS CATALOGUE / TECHNICAL GUIDE

VD50C

Cal. No.

Item

Cal.VD50C

Version-01

Summary of Contents for VD50C

Page 1: ...Revised on 23 Jun 2017 SII Products ANALOGUE QUARTZ TECHNICAL GUIDE PARTS CATALOGUE Cal VD50C...

Page 2: ...20SW SEIZAIKEN Silver oxide battery 9 5 t 2 0 mm Battery life is approximately 3 years Use 10 second gate Set the winding stem with crown at the normal position 28 80 mm 3H 9H 29 50 mm 26 00 mm Time i...

Page 3: ...6 003 Intermediate chronograph minute wheel and pinion B 0737 891 0902 008 Chronograph minute wheel 0962 891 0886 001 Intermediate chronograph minute 0962 891 wheel and pinion A 0885 002 0271 407 Hour...

Page 4: ...ection 4146 177 Step rotor B 4002 021 Coil block B 0012 079 Train wheel bridge B screw 4239 357 Rotor stator B 0125 331 0701 014 Train wheel bridge B Fifth wheel and pinion B 4146 177 Step rotor B 400...

Page 5: ...nd pinion Center wheel and pinion 0281 904 Setting wheel 4002 904 Coil block A 4239 357 Rotor stator A 0391 368 Train wheel setting lever 0383 368 Setting lever 0384 470 Yoke 0282 890 Clutch wheel 096...

Page 6: ...te dial All parts code are subject to change without notice 5 SII Products Part code 0878 220 Position of crown Position of date frame 3H 3H Version 01 PARTS CATALOGUE Color of background white Color...

Page 7: ...espond with each other Reset the stopwatch hands to 0 position following the procedure below If the stopwatch hands should move improperly also follow the same procedure ORDER Pull the crown out to th...

Page 8: ...of press hands Minute Hour Hands 5kg Second Hand 5kg Chrono Minute Second 1 10 second hands 3kg 2 Battery How to install the battery Remove the hook of the switch springs battery clamp portion Insert...

Page 9: ...USE THE STOPWATCH If the stopwatch is counting If the stopwatch is stopped If either of the stopwatch hands are not in the 0 position reset them following the procedure below Stopwatch minute hand St...

Page 10: ...e spot and advance the hour and minute hands by turning the crown Check that AM PM is set correctly When the crown is at the second click position Do not press any button Otherwise the chronograph han...

Page 11: ...ollowing order Stopwatch minute hand Stopwatch second hand Accumulated elapsed time measurement Ex Basketball game Press the buttons in the following order A A B 5 minutes 10 8 10 seconds 20 minutes 0...

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