
SII Products
ANALOGUE QUART
TECHNICAL GUIDE
&
PARTS CATALOGU
Revised on : 12. Nov. 2010

[SPECIFICATION]
3 Hands ( Hour , Minute , Second )
Chronograph ( Minute , Second , 1/10 second )
24H indicator
Two pole stepping motor
Step motor 3 pieces
Electronic circuit reset switch
Second setting device
[ Time ]
Indicated by the Hour , Minute , Second and 24-Hour hands
[ Stop watch ]
Up to 1 minutes in 1/10 second ( 2 seconds per round )
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 2 years
Use 10-second gate
*Set the winding stem with crown at the normal position
0 Jewel
φ 28.80 mm ( 12H - 6H )
Total height
Version-03
Outside diameter
Casing diameter
φ 29.50 mm ( 12H - 6H ) × 26.00 mm
3.97 mm
Movement
Movement
size
PARTS CATALOGUE / TECHNICAL GUIDE
VD56B
Cal. No.
Item
Cal.VD56B
1
SII Products
Less than ± 20seconds : Monthly rate at normal temperature range
Jewels
Measuring gate by
quartz tester
Battery
Accuracy
≧ 1600 A/m
Additional mechanism
Driving System
Time
indication
Antimagnetic

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity
Reassembling procedures Figs.
Moebius A Normal quantity
Moebius F
Hour, minute
second hands
Chronograph minute, second
and 1/10 second hands 0012 079
24-hour indicator Auxiliary train wheel bridge screw
Dial 0126 357
Auxiliary train wheel bridge
0157 011
0888 008 Small hour hand wheel
Chronograph second wheel
0817 357
0885 002 Intermediate small hour wheel
Intermediate chronograph second wheel
0886 003
0902 007 Intermediate chronograph
Chronograph minute wheel minute wheel and pinion (B)
0885 002
Intermediate chronograph
second wheel
0886 001
Intermediate chronograph 0888 008
minute wheel and pinion (A) Chronograph second wheel
0271 406
Hour wheel
11
12
13
9
9
10
10
2
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6
7
8
Version-03
D56B
PARTS CATALOGUE
5
1
1
⇒
45
45
⇒
1
2
3
4

Battery
0351 178
Winding stem
0012 079
Switch spring screw
0012 079
Switch spring screw
4245 401
Switch spring
0012 079
Train wheel bridge (B) screw
4004 259
0125 331 Circuit block
Train wheel bridge (B)
4270 358
0701 014 Battery connection(-)
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
Coil block (B)
4249 357
Rotor stator (B)
0701 014
Fifth wheel and pinion (B)
* All parts code are subject to change without notice.
30
31
25
27
28
29
22
23
24 26
20
18
21
19
3
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Version-04
D56B
PARTS CATALOGUE
14
15
16
16
17

0125 248
Train wheel bridge (A)
0241 177
Fourth wheel and pinion
0701 904 0231 904
Fifth wheel and pinion (A) Third wheel and pinion
4146 890
Step rotor (A)
0261 034
0221 156 Minute wheel and pinion
Center wheel and pinion
0281 904
Setting wheel
4002 904
Coil block (A)
4239 357
Rotor stator (A)
0391 357
Train wheel setting lever
0383 470
Setting lever
0384 470
Yoke
0282 890
Clutch wheel
*All parts code are subject to change without notice.
4
SII Products
Version-03
D56B
PARTS CATALOGUE
41
42
35
39
40
36
37
38
43
44
45
32
34
33

・The explanation here is only for the particular point of Cal.VD56B
Tweezers
1.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,
Be sure to touch the short-circuit the AC terminal of circuit
block and the switch spring with conductive tweezers
to reset the circuit as illustrated at right.
2) When the battery replaced with a new one, the time information stored in the built-in IC and
the time indicated by the stopwatch hands do not 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.
ORDER
Pull out the crown.
Keep the buttons "A" and "B" pressed at the same time
for 2 seconds, and then, release the buttons.
The stopwatch second hand move back and returned
to where it was.
Press button "A" or "B" to reset the stopwatch second
and minute hands to"0" position.
* By pressing button "A" , set the stopwatch 1/10 second hand.
* By pressing button "B", set the stopwatch second and minute hands.
Turn the crown to set the hour, and minute and 24-hour hands to
the desired time, and push the crown back
to the normal position.
1
2
3
4
5
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Version-02

1.REMARKS ON INSTALLING THE BATTERY
(1) HAND
・How to install the hands
Place the movement directly on a flat metal plate or
the like and press in the hands.
* Install the hour , minute and second hands at the
"12"o'clock position.
* Install the chrono minute and second hands at the
"0"o'clock position.
*Install the 24-hour indicator at the "24"position.
[ Reference ] The power of press hands
Minute & Hour Hands < 5kg
Second Hand < 5kg
Chrono Minute & Second < 3kg
24-Hour indicator < 3kg
(2) Battery
Remove the hook of the switch springs battery
clamp portion.
Insert the battery sideways, and have the hook of
the switch springs battery clamp portion catch
the main plate.
Battery clamp position
Hook Main plate
Hook
(3) Winding stem
・How to remove
While pushing the indented portion of the arrow pull out
the winding stem. Push
2
6
SII Products
Version-03
D56B
TECHNICAL GUIDE
1
Metal plate

Minute hand Stopwatch 1/10 second hand
(Move in 1/10 second increments)
Hour hand Button A
In stopwatch function
Stopwatch minute hand Start / Stop
(Move in minute increments)
Time setting
Second hand Crown at normal position
Stopwatch second hand Button A
(Move in second increments) In stopwatch function
24-Hour hand Split / Split reset / Reset
(Indicates the time on a 24-hour basis)
*The measurement time indicated by the stopwatch hands that move independently of center hands.
*Stopwatch 1/10 second hand moves for a first minute.
After one minute , it indicates the measurement time when it is stopped.
*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 minute hand Stopwatch 1/10 second hand
Crown
Stopwatch second hand
1.Pull out the crown 2.Press button A or B to reset the 3.Push the crown back to
stopwatch 1/10 second , second the normal
osition.
and minute hands to "0"position.
*B
ressing button A set the
Stopwatch 1/10 second hand.
*B
ressing button B set the
Sto
watch second and minute
hands.
*The stopwatch minute hand moves correspondingly with the stopwatch second hand.
*The hands move
uickly if the respective buttons are kept pressed.
B
BA
Before setting the time , check if the stopwatch 1/10 second , second and minute hands are in the "0"(12 o'clock) position.
7
SII Products
Version-02
D56B
OPERATION
DISPLAY AND CROWN / BUTTON OPERATION
ADJUSTING THE STOPWATCH HAND POSITION
A
B
B
A
B

*Before setting the time , check that the chronograph measurement is stopped.
Crown
1.Pull out the crown when 2.Turn the crown to set the 3.Push the crown back in to
the second hand is at hour , minute and 24-hour the normal position in accordance
the 12 o'clock position. hands to the desired time. with a time signal.
The second hand will As the hour hand moves,
stop on the spot. the 24-hour hand also moves
correspondingly.
* Do not press any button. When setting the hour hand,
Otherwise, the chronograph check that the 24-hour hand
hands will move. is set property.
・The measured time is indicated by the stopwatch hands that move independently of the center hands.
・The stopwatch can measure up to 60 minutes in 1/10 seconds.
(Standard measurement)
Ex) 100m race (Press the buttons in the following order
)
Stopwatch minute hand Stopwatch 1/10 second hand
Stopwatch second hand
START STOP (Finish)
8
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9.8/10 second
RESET (Reset to "0'00")
Version-02
D56B
OPERATION
TIME SETTING
HOW TO USE THE STOPWATCH
AAB
A
A
B

(Accumulated elapsed time measurement)
Ex) Basketball game (Press the buttons in the following order
/ A ・・・
B)
(Start of game) (Time out)
20 minutes 00 seconds
*Restart and stop of the stopwatch can be repeated as many times as necessary by pressing button A
(Split time measurement)
Ex) 5,000m race (Press the buttons in the following order
B / B ・・・
B)
* Measurement and release of the split time can be repeated as many times as necessary
by pressing button B.
5 minutes 10 seconds
RESTART ・・・
(Restart of game)
START STOP
START
9
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AA
2 minutes 50 seconds 15 minutes 10 seconds
SPLIT /
SPLIT RELEASE
RESETSTOP
RESETSTOP
(Game over)
Version-02
D56B
OPERATION
AA
AA
B
A
B
A
B
A
・・・