TMI Products NE20C Installer manual

SII Products

TECHNICAL GUIDE

PARTS CATALOGUE

AUTOMATIC MECHANICAL

Cal.NE20C

Revised on : 23. Jan. 2019

[SPECIFICATION]

Day setting

Difference is under 45 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)

-10~+20 seconds per day.

* Direction of position. : Dial up

* Difference of static accuracy of 24h and 0h

Duration time

More than 45 hours … Mainspring after fully wound up.

* Posture to confirmation : Dial up

Normal position

20 seconds

* Equipment to be used : Witschi WATCH EXPERT

Posture

difference

Manual winding

Automatic winding with ball bearing

Stop second device

Quick day-date correction

<< Movements >>

䞉Fully wound up by turning the crown minimum 55 times.

䞉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 conditions

䞉Rotary speed : 30 rpm

䞉Operating time: 60 minutes

Crown

position

Counterclockwise

Clockwise

-15~+25 seconds per day

* Measurement should be done within 10~60 minutes after fully wound up.

* All measurements are made without the calendar in function.

Measurement

position

Direction of 3 positions. (1) Dial up (2) 9 o'clock up (3) 6 o'clock up

Lift angle

52 deg.

Free

Manual winding

Date setting

PARTS CATALOGUE / TECHNICAL GUIDE

Cal.NE20C

Version-03

Cal. No.

Measurement

time

Time indication

Basic function

3 Hands ( Hour , Minute , Second )

Day-date calendar hands

Power reserve hand

Ф27.40mm

Casing diameter

Ф27.00mm

Total height

Frequency

28,800 vibrations per hour

Accuracy

SII Products

Item

NE20C

Second click

Time setting

Movement

䚷䚷䚷䚷size

Outside diameter

Winding the mainspring

Static accuracy

6.15 mm

First click

Jewels

29 jewels

0012 310

Auxiliary train wheel bridge screw

1019 002

Power reserve wheel

0126 196

Auxiliary train wheel bridge

0817 047

Intermediate power reserve wheel

1009 004

Second sun wheel

0538 001

Barrel arbor pinion

1026 002

1001 025

Planetary reduction wheel

Sun and planet unit

1009 003

Sun wheel

Refer to the page9 for the

oiling position.

PARTS CATALOGUE

SII Products

Version-05

Cal.NE20C

(Back side)

Type of oil Oil quantity mark

Moebius 9010 NORMAL QUANTITY

S-6 SUFFICIENT QUANTITY

S-4

䲑

Reassembling procedures Figs.

䲑

Disassembling procedures Figs.

0898 001

Day driving wheel

0802 036

0970 003

Date driving wheel Day star

0970 002

0810 164

Date star

Day jumper

1001 128

0810 164

Day-date corrector setting unit

Date jumper

0012 310

0737 021

Auxiliary main plate screw Date corrector setting wheel

0102 192

Auxiliary main plate

0261 190

Minute wheel and pinion

0273 029

Lower shock absorbing spring

Hour wheel

0225 432

Lower shock absorbing Cannon pinion

cap jewel

0962 190

Lower hole jewel frame

for shock-absorber

Main plate

Version-05

Cal.NE20C

(Back side)

PARTS CATALOGUE

SII Products

60-3

Day-date corrector setting

transmission wheel B

60-1

60-2

(Back side)

Type of oil Oil quantity mark

Moebius 9010 S-6 NORMAL QUANTITY

S-4 SUFFICIENTQUANTITY

1509 089

Oscillating weight with ball bearing

*Refer to the page11 for

assembling position

0012 354

0012 100

0191 064

Balance bridge screw

Automatic train bridge

0171 349

0514 183

Balance cock

0012 919

Ratchet wheel screw

0285 051

Ratchet wheel

0012 354

Pallet bridge screw

0161 310

0310 058

Pallet bridge

Balance complete

with stud

0301 315

Pallet fork

Upper shock absorbing spring

Upper hole jewel frame for shock-absorber

Upper shock absorbing cap jewel

PARTS CATALOGUE

SII Products

31-4

Version-04

Cal.NE20C

31-3

31-2

Second reduction wheel and pinion

Automatic train bridge screw

31-1

whole tooth

Type of oil Oil quantity mark

Moebius 9010 S-6 NORMAL QUANTITY

S-4 SUFFICIENTQUANTITY

0012 100

0511 010

Cap jewelled spring

Cap jewel

0831 183

0363 184

Pawl lever

0114 415

Barrel and train wheel bridge

with hole jewel

0836 002

*Refer to the page8 for the

Reduction wheel holder

oiling position.

0436 166

Lower plate for barrel and train

wheel bridge

0012 354

0144 300

Lower plate for barrel and train

Fourth wheel and pinion wheel bridge screw

0231 070

Third wheel and pinion

0012 354

Center wheel bridge screw

0122 164

Center wheel bridge

PARTS CATALOGUE

Barrel and train wheel bridge screw

Version-04

Cal.NE20C

First reduction wheel and arbor

*Refer to page 8 for oiling spot

36-1

36-2

SII Products

*Refer to the page11 for assembling

Ratchet sliding wheel spring

Type of oil Oil quantity mark

Moebius 9010 S-6 NORMAL QUANTITY

S-4 SUFFICIENTQUANTITY

0224 195

Center wheel and pinion with cannon pinion

0381 004

Click

0201 074

Barrel complete with mainspring

0251 314

Escape wheel and pinion

0012 168

Yoke spring screw

0388 177

Yoke spring

0384 183

Yoke

0383 185

0601 310

Setting lever

Balance stop lever

0282 183

Clutch wheel

0283 020

Winding pinion

0962 183

Day-date corrector setting

transmission wheel A

0351 200

Winding stem

Main plate

Version-04

Cal.NE20C

PARTS CATALOGUE

SII Products

Type of oil Oil quantity mark

Moebius 9010 S-6 NORMAL QUANTITY

S-4 SUFFICIENTQUANTITY

Remarks

䖃䖃List of screws

*All parts code are subject to change without notice.

Version-03

Cal.NE20C

Lower plate for

barrel and train

wheel bridge screw

Auxiliary train wheel

bridge screw (×4)

Balance bridge

screw

Pallet bridge screw

(×2)

PARTS CATALOGUE

Barrel and train

wheel bridge screw

䚷䚷䚷䚷䚷䚷䚷䚷䚷䚷(×3)

Automatic train

bridge screw (×2)

SII Products

0012 100

Parts No

Name

0012 354

0012 919

Center wheel bridge

screw

Name

Parts No

Ratchet wheel screw

0012 168

Yoke spring screw

(×2)

Auxiliary main plate

screw

0012 310

1.Oiling spot

Barrel 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-03

Cal.NE20C

TECHNICAL GUIDE

(1)

SII Products

Type of oil Oil quantity mark

Moebius 9010 S-6 NORMAL QUANTITY

S-4 SUFFICIENTQUANTITY

*3 *2 *3

Planet unit Second sun wheel

Notes:

*2 Oil to between the arbor pinion and the gear.

Sun and planet unit

Sun wheel

2.Method of identifying day jumper and date jumper Day jumper

*There is no bend at the spring.

Date jumper

*There is a bend at the spring.

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)

<< Disassembling >>

<< Assembling >>

(2)

SII Products

TECHNICAL GUIDE

Version-03

Cal.NE20C

Day-date jumper

Type of oil Oil quantity mark

Moebius 9010 S-6 NORMAL QUANTITY

S-4 SUFFICIENTQUANTITY

Side

view

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