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Remarks

 List of screws

*All parts code are subject to change without notice.

Version-03

Cal.NE20C

7

30

Lower plate for
barrel and train
wheel bridge screw

25

Auxiliary train wheel
bridge screw (×4)

Balance bridge
screw

Pallet bridge screw
                      (×2)

PARTS  CATALOGUE

41

Barrel and train
wheel bridge screw

䚷䚷䚷䚷䚷䚷䚷䚷䚷䚷

(×3)

Automatic train
bridge screw (×2)

32

SII Products

0012 100

Parts No

45

Name

0012 354

0012 919

Center wheel bridge
screw

Name

Parts No

28 Ratchet wheel screw

0012 168

35

Yoke spring screw
                      (×2)

51

Auxiliary main plate
screw

18

1

0012 310

Summary of Contents for NE20C

Page 1: ...SII Products TECHNICAL GUIDE PARTS CATALOGUE AUTOMATIC MECHANICAL Cal NE20C Revised on 23 Jan 2019...

Page 2: ...t wheel screw 8 times Complete Watch A winding machine is needed to wind up the mainspring Full wind up conditions Rotary speed 30 rpm Operating time 60 minutes Crown position Counterclockwise Clockwi...

Page 3: ...arrel 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 2 SII Products 2 Version 05 Cal NE20C 6...

Page 4: ...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 V...

Page 5: ...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 CATAL...

Page 6: ...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 scre...

Page 7: ...84 183 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 V...

Page 8: ...iary train wheel bridge screw 4 Balance bridge screw Pallet bridge screw 2 PARTS CATALOGUE 41 Barrel and train wheel bridge screw 3 Automatic train bridge screw 2 32 SII Products 0012 100 Parts No 45...

Page 9: ...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...

Page 10: ...ere 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...

Page 11: ...Position confirmation by the movement Day driving wheel confirmation window Day star Day driving wheel Auxiliary train wheel bridge Date star Date driving wheel confirmation window Date driving wheel...

Page 12: ...g 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 02 Cal NE20C TECHNICAL GUIDE Rem...

Page 13: ...ever Winding stem 9 Accuracy adjustment Regulator Regulator pin Stud support Note Regulator Time adjustment Stud support Beat error adjustment Regulator pin Gap adjustment of balance spring and regula...

Page 14: ...main plate pin Not fully wound state Image design 12 Accuracy measurement condition Static Accuracy 15 25 seconds per day Measurement Conditions 1 Measurement should be done within 10 60 minutes afte...

Page 15: ...position 2 Turn the crown to left for date setting 3 Turn the crown to right for day 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 pe...

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