background image

Minute hand

Stopwatch 1/1 second hand

Button A

Hour hand

In stopwatch function

Start / Stop

Crown at normal position

Crown at second position

Time setting

Second hand

Crown at first position

Date setting

Button B

In stopwatch function

Stopwatch minute hand

Split / Reset

*The measurement time is indicated by the stopwatch hands that move independently of small second hand. 

Before setting the time , check if the stopwatch 1/1 second , minute hands are in the "0"(12 o'clock) position.
* If the stopwatch is in use , press the button in the following order to reset it , and then , 

check if the hands return to "0" position.  

(for details , see "HOW TO USE THE STOPWATCH")

* If the stopwatch is counting :
* If the stopwatch is stopped  :
* If the split time is displayed :

If either of the stopwatch hands are not in the "0" position , reset them following the procedure below.

Stopwatch 1/1 second hand

Crown

Stopwatch minute hand

1. Put  the crown out

2. Press button A or B to reset the stopwatch

3. Push the crown back in to 

to the second click.

1/1second , minute hands to "0" position.

the normal position

* By pressing button A , set the stopwatch 
1/1second hand.
* By pressing button B , set the stopwatch 

   minute hand.

*The stopwatch minute hand moves correspondingly with the stopwatch second hand. 
*The hands move quickly if the respective buttons are kept pressed. 

A

B

B

A

B

8

SII Products

Version-02

Cal.VD51B

OPERATION

DISPLAY AND CROWN / BUTTON OPERATION 

ADJUSTING THE STOPWATCH HAND POSITION

A

B

B

Summary of Contents for VD51B

Page 1: ...SII Products ANALOGUE QUARTZ TECHNICAL GUIDE PARTS CATALOGUE Cal VD51B Revised on 12 Nov 2010...

Page 2: ...nthly rate at normal temperature range SR920SW SEIZAIKEN Silver oxide battery Battery life is approximately 2 years Use 10 second gate Set the winding stem with crown at the normal position Jewels 0 J...

Page 3: ...el 0810 368 0817 368 Date jumper Intermediate date driving wheel 0888 009 0802 368 Chronograph second wheel Date driving wheel 0885 002 0836 369 Intermediate chronograph second wheel 0737 891 0885 002...

Page 4: ...nection Fifth wheel and pinion B 4146 177 Step rotor B 4002 923 0012 079 Coil block B Train wheel bridge B screw 4239 357 Rotor stator B 0125 331 Train wheel bridge B 4146 177 Step rotor B 4002 923 Co...

Page 5: ...157 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 0962 890...

Page 6: ...are subject to change without notice 0878 221 3H 3H White 0878 220 3H 3H Black 6 Position of crown Position of date frame Color of figure Part code 5 SII Products Version 02 Cal VD51B PARTS CATALOGUE...

Page 7: ...correspond 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 Pull the crown out to the...

Page 8: ...press hands Minute Hour hands 5kg Second hand 5kg Chrono minute second 3kg 2 Battery How to install the battery Remove the hook of the switch spring s battery clamp portion Insert the battery sideways...

Page 9: ...W TO USE THE STOPWATCH If the stopwatch is counting If the stopwatch is stopped If the split time is displayed If either of the stopwatch hands are not in the 0 position reset them following the proce...

Page 10: ...button Otherwise the chronograph hands will move Do not set the date between 9 00 P M and 1 00 A M Otherwise the day may not change properly If it is necessary to set the date during that time period...

Page 11: ...time measurement Ex 5 000m race Press the buttons in the following order Measurement and release of the split time can be repeated as many times as necessary by pressing button B B B A A B A A A STOP...

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