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SII Products
TECHNICAL GUIDE&
PARTS CATALOGUE
AUTOMATIC MECHANICAL
Cal.NE57A
Revised on : 23. Jan. 2019
[SPECIFICATION]
Free
Difference is under 60 seconds within max value and min value.* Measurement should be done within 10~60 minutes after fully wound up.* Direction of 4 positions. (1) 12 o'clock up (2) 9 o'clock up (3) 6 o'clock up (4) 3 o'clock up
Isochronisms(24h-0h)
-20~+40 seconds per day.* Direction of position. : Dial up* Difference of static accuracy of 24h and 0h
Duration time More than 41 hours … Mainspring after fully wound up.* Posture to confirmation : Dial up
Normal position
20 seconds* Equipment to be used : Witschi WATCH EXPERT
Posturedifference
Manual windingAutomatic winding with ball bearingStop second deviceQuick date correction
<< Movements >>Fully wound up by turning the crown minimum 55 times.Fully wound up by turning the ratchet wheel screw 8 times.
<< Complete Watch >>A winding machine is needed to wind up the mainspring.Full wind up conditionsRotary speed : 30 rpmOperating time: 60 minutes
Crown position
Counterclockwise Clockwise
-20~+40 seconds per day* Measurement should be done within 10~60 minutes after fully wound up.* All measurements are made without the calendar in function.
Measurementposition Direction of 3 positions. (1) Dial up (2) 9 o'clock up (3) 6 o'clock up
Lift angle 53 deg.
Free Manual windingDate setting
PARTS CATALOGUE / TECHNICAL GUIDECal.NE57A
Version-02Cal. No.
Measurementtime
Time indication
Basic function
3 Hands ( Hour , Minute , Second )Date calendar handsPower reserve hand ( Center position )
Ф27.40mm
Casing diameter Ф29.36mm (with dial holding spacer)
Total height
Frequency 21,600 vibrations per hour
Accuracy
SII Products 1
Item NE57A
Second click Time setting Time setting
Movement
Movementsize
Outside diameter
Winding the mainspring
Static accuracy
6.63 mm
First click
Jewels 29 jewels
0439 190Dial spacer
4408 245Dial holding spacer
0012 310Auxiliary train wheelbridge screw
0126 196Auxiliary train wheel bridge
0538 001Barrel arbor pinion
0817 047Intermediate power reserve wheel 1026 002
Planetary reduction wheel
1009 004Second sun wheel
1001 0251019 190 Sun and planet unitCenter power reserve wheel
1009 0030817 190 Sun wheelIntermediate center power reserve wheel
0491 190Dial washer
Refer to the page9 for theoiling position.
12
13
PARTS CATALOGUE
2SII Products
*2
Version-02Cal.NE57A
7
8
9
10
3
6
5
1
2
(Back side)
4
11
Type of oil Oil quantity markMoebius 9010 NORMAL QUANTITYS-6 SUFFICIENT QUANTITYS-41
61
Reassembling procedures Figs.
Disassembling procedures Figs. 1
61
*1
*1
*2
0970 102Date star
1001 1280802 036 Day-date corrector setting unitDate driving wheel
0810 164Date jumper
0737 021Date corrector setting wheel
0012 310Auxiliary main plate screw
0102 193Auxiliary main plate
0273 245Hour wheel
0261 190Lower shock absorbing spring Minute wheel and pinion
0225 341Lower shock absorbing Cannon pinioncap jewel
0962 190Lower hole jewel framefor shock-absorber
15
14
16
Version-02Cal.NE57A
(Back side)
17
PARTS CATALOGUE
18
SII Products 3
19
20
21
22
61-3
23
24Day-date corrector settingtransmission wheel B
61-1
61-2
(Back side)
*4
*1
*2
Type of oil Oil quantity markMoebius 9010 S-6 NORMAL QUANTITY
S-4 SUFFICIENT QUANTITY
*1
*4
*2
*3
*3
Oscillating weight with ball bearingRefer to page 7 for each parts code*Refer to the page11 for assembling position
0012 354
0012 100 0191 183Balance bridge screw Automatic train bridge
0171 354 0514 183Balance cock
0012 919Ratchet wheel screw
0285 051Ratchet wheel
0012 354Pallet bridge screw
0161 3000310 186 Pallet bridge
Balance completewith stud 0301 009
Pallet fork
Upper shock absorbing spring
Upper hole jewel frame for shock-absorber
Upper shock absorbing cap jewel
PARTS CATALOGUE
SII Products 4
32-4
Version-01Cal.NE57A
30
33
34
25
32-3
29
26
31 27
32-2
Second reduction wheel and pinion32 28
Automatic train bridge screw
32-1
35
*2
*3
*1
whole tooth
Type of oil Oil quantity markMoebius 9010 S-6 NORMAL QUANTITY
S-4 SUFFICIENT QUANTITY
*1
*2
*3
0012 100
0511 010 Cap jewelled spring
and arbor Cap jewel
oiling spot
0831 183 0363 184Pawl lever
0114 183Barrel and train wheel bridgewith hole jewel
0836 002 *Refer to the page8 for theReduction wheel holder oiling position.
0436 166Lower plate for barrel and trainwheel bridge
0012 3540144 245 Lower plate for barrel and trainFourth wheel and pinion wheel bridge screw
0231 070Third wheel and pinion
0012 354Center wheel bridge screw
0122 164Center wheel bridge
PARTS CATALOGUE
Barrel and train wheel bridge screw
40
Version-01Cal.NE57A
36
First reduction wheel
*Refer to page 8 for
41 37-1
37
45
37-2
5SII Products
42
46
38
47
44
*Refer to the page11 for assembling
39
43
Ratchet sliding wheel spring
*1
Type of oil Oil quantity markMoebius 9010 S-6 NORMAL QUANTITY
S-4 SUFFICIENT QUANTITY
*1
0224 448Center wheel and pinion with cannon pinion
0381 004Click
0201 287Barrel complete with mainspring
0251 300Escape wheel and pinion 0012 168
Yoke spring screw
0388 177Yoke spring
0384 183Yoke
0383 1850601 183 Setting leverBalance stop lever
Refer to page 9 for oiling spot 0282 183
Clutch wheel
0283 020Winding pinion
0962 183Day-date corrector settingtransmission wheel A
0351 200Winding stem
Main plate
Version-01Cal.NE57A
48
49
50
PARTS CATALOGUE
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59
60
53
57
58
51
54
55
61
52
56
*1
*3
*1
Type of oil Oil quantity markMoebius 9010 S-6 NORMAL QUANTITY
S-4 SUFFICIENT QUANTITY
*3
*4
*4
*2
*2
Oscillating weight with ball bearing (P-4)
List of screws
*All parts code are subject to change without notice.
Version-01Cal.NE57A
7
31
Lower plate forbarrel and trainwheel bridge screw
26
Auxiliary train wheelbridge screw (×4)Balance bridge
screw
Pallet bridge screw (×2)
PARTS CATALOGUE
42
Barrel and trainwheel bridge screw
(×3)
Automatic trainbridge screw (×2)
33
SII Products
0012 100
Parts No
46
Name
0012 3540012 919 Center wheel bridgescrew
Name Parts No
29 Ratchet wheel screw
0012 168
36
Yoke spring screw (×2)52
Auxiliary main platescrew19
3
0012 310
1509 325 Malaysia mark
25
Parts code Marking
1509 324 Japan mark
1.Oiling spotBarrel and train wheel bridge with hole jewel
[Top side]
[Back side]
Note*2 After oiling, set lower plate for barrel and train wheel bridge & screw.
Lower plate for barrel and train wheel bridge
Lower plate for barrel and train wheel bridge screw
*4 After oiling, set first reduction wheel and arbor & pawl lever & reduction wheel holder.First reduction wheel and arbor
First reduction wheel and arbor
Pawl lever
Reduction wheel holder
Version-01Cal.NE57ATECHNICAL GUIDE
39
43
42
(1)
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4141
40
37
Type of oil Oil quantity markMoebius 9010 S-6 NORMAL QUANTITY
S-4 SUFFICIENT QUANTITY
*1
*1
*2
*3 *2 *3 *4
Planet unitSecond sun wheel
Notes:*2 Oil to between the arbor pinion and the gear.
Sun and planet unit
Sun wheel
Balance stop lever
Balance stop lever
Main plate
Contact part of main plate and balance stop lever
2.Method of identifying date jumper
Date jumper
*There is a bend at the spring.
SII Products 9
56
61
TECHNICAL GUIDE Version-01Cal.NE57A
8
9
10
16
(3)
(2)
Type of oil Oil quantity markMoebius 9010 S-6 NORMAL QUANTITY
S-4 SUFFICIENT QUANTITY
Side view
*2
3.Disassembling / assembling of the first reduction wheel and arbor
First reduction wheel and arbor
Reduction wheel holder
Barrel and train wheel bridge with hole jewel (back side)
4.Disassembling / assembling of the cannon pinion
Cannon pinion
Version-01Cal.NE57A
Push
<< Assembling >>
TECHNICAL GUIDE
39
37
<< Disassembling >> << Assembling >>
41
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UP
23
<< Disassembling >>
10
5.Disassembling / assembling of the Ratchet sliding wheel spring.
Ratchet sliding wheel spring
Barrel and train wheel bridge with hole jewel
6.Assembling position of oscillating weightBefore assembling oscillating weight.
Match the center of the oscillating weight and winding stem.Set the hole of first reduction wheel gear on the imaginary line toward the balance bridge guide pin.
Balance bridge guide pin First reduction wheel gear
Version-01Cal.NE57ATECHNICAL GUIDE
Remove the hook of the ratchet sliding wheel springfrom barrel and train wheel bridge with hole jewel.
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<< Disassembling >> << Assembling >>38
37
The hooks of the ratchet sliding wheel spring are hungup on barrel and train wheel bridge with hole jewel.
Enlarged view
PUSH
7.To remove the winding stem1) Set the winding stem to normal position.2) Pull out the winding stem, while pushing "A"
Setting lever
Winding stem
8.Accuracy adjustment
Regulator
Regulator pinStud support
Note:Regulator … Time adjustment Stud support … Beat error adjustment
Regulator pin … Gap adjustment of balance spring and regulator pin
12
Version-01Cal.NE57A
Anticlockwise rotation No clockwise rotation
TECHNICAL GUIDE
57
55
SII Products
(+) side
(-) side
A
9.To wind up the mainspring<<Movement>>
Screwdriver winding … Turn the ratchet wheel screw 8 times clockwise.
Screwdriver
Ratchet wheel screwRatchet wheel
10.How to attach handsPlace the movement directly on a flat metal plate or something similar to attach the hands. Static weightingWe recommend the use of movement holder to attach hands.For hands attachment, please use a special equipment.When the movement receives a strong shock, it may be damaged.
<<Note: Power reserve hand setting>> (1)The mainspring should be fully wound up before setting power reserve hand. (2)Set power reserve hand at the fully wound up position of the dial graduation.
Fully wound state [ Hand setting position ]Auxiliary main plate pin [ Image design ]
Not fully wound state
11.Accuracy measurement conditionStatic Accuracy : -20~+40 seconds per dayMeasurement Conditions
1) Measurement should be done within 10~60 minutes after fully wound up.2) Lift angle : 53 deg.3) Measurement position : (1) Dial up (2) 9 o'clock up (3) 6 o'clock up4) Minimum measurement Time : 20 seconds5) Stabilizing Time :
Leave the watch for at least 20 seconds to stabilize after you change its measurement position.
13
Version-02Cal.NE57A
The mainspring would be fully wound up by turning the ratchet wheel screw 8 times clockwise. (Manual winding or Screwdriver)Manual winding … Rotate crown clockwise at normal position by minimum 55 times. (Equal to ratchet wheel screw 8 times )
[ Manual winding ]
[ HOW TO CHECK ]
[ Screwdriver winding ]
TECHNICAL GUIDE
Setting positionof power reservehand
Intermediate power reserve wheel
SII Products
Metal plate
Enlarged view
[ NE57A operation manual ]
Minute hand
Hour hand Crown at normal position
Second clickSecond hand
First clickDate hand
Power reserve hand
1.How to set the time1) Pull out the crown to the second click position.2) Turn the crown to set hour and minute hands.
(Check that AM/PM is set correctly.)3) Push the crown back into the normal position.
*When time setting is performed in counterclockwise, date hands reverses. Please reset by date correction.
2.How to set the Date hands1) Pull out the crown to the first click position.2) Turn the crown to left for date setting.
* Do not set the calendar between 9:00 P.M. and 2:00 A.M. If the setting of the calendar is made during this period,the date will not change to the next date. Please set the calendar after changing the time other than the above period.
4) Push the crown back into the normal position.
3.To wind up the mainspringa) Manual winding … Rotate the crown clockwise at normal position.
Wind turning the ratchet wheel screw 8 times. It will start to move naturally after shaking slightly.b) To wind up with winding machine.
Full wind up conditionsRotary speed : 30 rpmOperating time : 60 minutes
Version-01Cal.NE57AOPERATION
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