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

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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

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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

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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.

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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

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(+) 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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