Omega 3205 Quick start guide

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OMEGASA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205
3205A
3205A
12’’’
Ø 27 mm
Version A Version B
1 2 3 123
I II III
U
Height on movement 6.85 mm
Power reserve
Number of jewels
Frequency
52 h
33
4 Hz (28’800 A/h)
CALIBRE
3205
Automatic movement, exclusive Omega chronograph, COSC certified, Swiss Pallet fork escapement.
Chronograph system with column-wheel. 30-min. minute counter and 12-h hour counter + small second hand
at 9 o’clock. Omega balance system without index.
Technical Guide TG-19-C-062-E B
Made by: pelrom Date: 19.04.2010 3 Modifications: see last page

Summary
Page
Calibre 3205 1-10
General information for Calibre 3205 3
For the following informations, see basic Technical Guide 3303 3
For the following informations, see document «General information for Calibres
3200, 3201, 3202, 3203, 3205, 3301, 3303, 3313 and 3603» 3
Differences between the versions for Calibre 3205 4
Differences between the versions 4
Exploded views for Calibre 3205 5
Dial side 5
Spare parts list & illustrations for Calibre 3205 6-9
Spare parts & illustrations 6
Spare parts & illustrations 7
Spare parts & illustrations 8
Spare parts & illustrations 9
Modifications of Technical Guide versions for Calibre 3205 10
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

General information for Calibre 3205
For the following informations, see basic Technical Guide
3303:
- Order to assembly (except dial side)
- Hand heights
For the following informations, see document «General
information for Calibres 3200, 3201, 3202, 3203, 3205,
3301, 3303, 3313 and 3603»:
- Complete balance bridge and chronograph bridge
- Major points
- Instantaneous rate
- Special lubrication
- Lubricants
- Cleaning and epilame-coated procedure
- Components that should not be epilam-treated
- Tightening and untightening torque according to
screwthread size
- For additional informations, please consult respective
Technical Guides
- Technical modifications on version «A»
- Customer Service lubrication of stud for crown wheel
(31.023) and the 3 intermediate driving wheels for ratchet
wheel (32.083)
- Runners for hand setting and hand setting force
- Mandatory tools
- List of programs of apparatus
- Checks of endshake
- Description of chronograph system for swiss lever
escapement
- Functioning system of movement
- Chronograph setting
- Instantaneous rate
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Differences between Calibre 3205A and 3205B
3205A (4 Hz) 3205B (4 Hz)
Main plate
ref. 7223205A10020
Ø Hole for dial fastener: 0.80 mm ref. 7223205B10020 Ø Hole for dial fastener: 1.00 mm
Balance bridge
ref. 722330110058 ref. 7223301B10058
Balance
ref. 722330340055
Cylindrical pivots Ø0.08 mm ref. 7223303B40055
Conical pivots Ø0.07 mm
Shock-absorber, upper
Jewel hole Ø 0.09 mm
ref. 722330332025
Nickel-plated
Jewel hole Ø 0.08 mm
ref. 7223313B32027
Gold-plated
Shock-absorber, lower
ref. 722330332062
Jewel hole Ø 0.09 mm
Nickel-plated
ref. 7223303B70531
Jewel hole Ø 0.08 mm
Gold-plated
In setting, upper ref. 7223303A32127
Jewel hole Ø 0.09 mm ref. 7223313B32127 Jewel hole Ø 0.08 mm
In setting, lower ref. 7223303A32167
Jewel hole Ø 0.09 mm ref. 7223313B32167 Jewel hole Ø 0.08 mm
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Exploded views – Dial side for Calibre 3205
Parts listed in order of assembly
1 = 31080
2 = 31041S2
3 = 31102
4 = 31046
5 = 10062
6 = 6210 (2x)
1
23
4
5
6
Moebius SYNT-A-LUBE 9010
Moebius 9504
Moebius SYNT HP-1300 Sans Colorant
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Spare Parts list for Calibre 3205
Main plate jewelled,
pre-assembled Version Reference Barrel Version Reference
3205A 7223205A10020 3205A
722330320010
3205B 7223205B10020 3205B
Barrel bridge, jewelled Version Reference Barrel drum + barrel cover Version Reference
3205A 7223301A10041 3205A 722330320040
3205B 3205B
Wheel train bridge, jewelled Version Reference Barrel arbor Version Reference
3205A 722330110048 3205A 722330320060
3205B 3205B
Pallet bridge, jewelled,
rhodium-plated Version Reference Mainspring with bridle Version Reference
3205A 722330310057 3205A 722330320100
3205B 3205B
Balance bridge,
pre-assembled Version Reference Oscillating weight, rhodium-plated Version Reference
3205A 722330110058
3205
3205
3205A 7223205A22019
3205B 7223301B10058 3205B
Train bridge Version Reference Intermediate wheel Version Reference
3205A 722320010062 3205A 722330330012
3205B 3205B
Hammer operating
limitation bridge Version Reference Great wheel Version Reference
3205A 722330310615 3205A 722330330014
3205B 3205B
Automatic device
framework, jewelled Version Reference Third wheel Version Reference
3205A 722330312030 3205A 722330330025
3205B 3205B
Automatic device bridge,
pre-assembled Version Reference Second wheel Version Reference
3205A 722330112050 3205A 722330330027**
3205B 3205B
Chronograph bridge,
rhodium-plated Version Reference Escape wheel Version Reference
33
33
3205A 7223205A15040N 3205A 722330330040
3205B 7223205A15040 3205B
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Spare Parts list for Calibre 3205
Ratchet wheel Version Reference Cap jewel, lower Version Reference
3205A 722330331022 3205A 7223303A32262
3205B 3205B
Crown wheel Version Reference Cap jewel, upper Version Reference
3205A 722330331023 3205A 7223303A32325
3205B 3205B
Minute wheel Version Reference Shock-absorber spring, top Version Reference
3205A 722330331041S2 3205A 7223303A32425
3205B 3205B
Hour wheel Version Reference Shock-absorber spring, bottom Version Reference
3205A 722330331046** 3205A 7223303A32462
3205B 3205B
Cannon pinion with
driving wheel Version Reference Ratchet wheel driving wheel Version Reference
3205A 722330331080** 3205A 72233033203301
3205B 3205B
Motion worksetting wheel Version Reference Wig-wag pinion Version Reference
3205A 722330331102 3205A 722330332104
3205B 3205B
Winding pinion Version Reference Stop pinion Version Reference
3205A 722330331120 3205A 722330332105
3205B 3205B
Sliding pinion Version Reference Chronograph wheel Version Reference
3205A 722330331121 3205A 722330335010**
3205B 3205B
Reduction wheel Version Reference Minute-counting wheel Version Reference
3205A 722330332031S2 3205A 722330335012**
3205B 3205B
Shock-absorder, upper Version Reference Hour-counting wheel Version Reference
3205A 722330332025 3205A 722330335030**
3205B 7223313B32027 3205B
Shock-absorber, lower Version Reference Driving wheel for counters Version Reference
3205A 722330332062 3205A 722330335031
3205B 7223303B70531 3205B
In settings, upper Version Reference Hour counter additional
driving wheel 1 Version Reference
3205A 7223303A32127 3205A 722330335032
3205B 7223313B32127 3205B
In settings, lower Version Reference Hour counter additional
driving wheel 2 Version Reference
3205A 7223303A32167 3205A 722330335033
3205B 7223313B32167 3205B
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Spare Parts list for Calibre 3205
Pallet fork Version Reference Column wheel jumper Version Reference
3205A 722330340010 3205A 722330355130
3205B 3205B
Balance complete with stud Version Reference Minute counter jumper Version Reference
3205A 722330340055 3205A 722330355143
3205B 7223303B40055 3205B
Stud support Version Reference Chronograph column-wheel Version Reference
3205A 722330340210 3205A 722330355180
3205B 3205B
Winding stem Version Reference Chronograph and minute hammer Version Reference
3205A 722330351010 3205A 722330355240
3205B 3205B
Yoke 2 position Version Reference Hour hammer Version Reference
3205A 722320051050 3205A 722330355248
3205B 3205B
Rocking bar 2 position Version Reference Eccentric screw Version Reference
3205A 722320051052 3205A 722330355445
3205B 3205B
Setting lever Version Reference Balance stop lever Version Reference
3205A 722330351083 3205A 722330356070
3205B 3205B
Setting lever jumper Version Reference Click spring Version Reference
3205A 722320051090 3205A 722330361080
3205B 3205B
Click Version Reference Yoke spring Version Reference
3205A 722330351120 3205A 722330361100
3205B 3205B
Stop click Version Reference Stop click spring Version Reference
3205A 722330352053 3205A 722330362101
3205B 3205B
Column wheel
operating lever Version Reference Column wheel operating lever spring Version Reference
3205A 722330355040 3205A 722330365040
3205B 3205B
Hammer operating lever Version Reference Hammer operating
lever spring Version Reference
3205A 7223303A55048 3205A 722330365047
3205B 3205B
Clutch rocker Version Reference Hour wheel friction spring Version Reference
3205A 722330355090 3205A 722330366220
3205B 3205B
Clutch lever Version Reference Crown wheel core Version Reference
3205A 722330355100 3205A 722330381136
3205B 3205B
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Spare Parts list for Calibre 3205
Dial fastener Version Reference Screwfor column wheel
operating lever Version Reference
3205A 722330370200 3205A 72233036204
3205B 3205B
Screw for stud Version Reference Screw for crown boss Version Reference
3205A 72233034002 3205A 72233036204
3205B 3205B
Screw for automatic device
bridge Version Reference Screw for train bridge Version Reference
3205A 72233036003 3205A 72233036210
3205B 3205B
Screw for hammer operating
lever Version Reference Screw for setting lever jumper Version Reference
3205A 72226016004 3205A 72233036407
3205B 3205B
Screw for clutch rocker Version Reference Screw for click Version Reference
3205A 72226016004 3205A 72233037008
3205B 3205B
Screw for clutch lever Version Reference Screwfor chronograph bridge Version Reference
3205A 72226016004 3205A 72233037031
3205B 3205B
Screw for column wheel
jumper Version Reference Screw for balance-bridge Version Reference
3205A 72226016004 3205A 72233037031
3205B 3205B
Screw for minute counter
jumper Version Reference Screw for train wheel bridge Version Reference
3205A 72226016004 3205A 72233037031
3205B 3205B
Screw for barrel bridge Version Reference Screw for automatic
device brigde Version Reference
3205A 72233036011 3205A 72233037033
3205B 3205B
Screw for hammer operating
lever spring Version Reference Screw for chronograph bridge Version Reference
3205A 7223612A6012 3205A 72233037033
3205B 3205B
Screw for ratchet wheel Version Reference Screw for setting lever jumper Version Reference
3205A 72233036019 3205A 72233037035
3205B 3205B
Screw for column wheel
operating lever Version Reference Screw for oscillating weight Version Reference
3205A 72233036022 3205A 72233038200
3205B 3205B
Screw for hammer operating
limitation bridge Version Reference Screw for pallet bridge Version Reference
3205A 72233036034 3205A 72233038204
3205B 3205B
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

Technical Guide versions
First version: 29.08.2008 Version A Made by: Pelrom
Last version: 19.04.2010 Version B
Modifications of Technical Guide version B
Old version (A) NewVersion (B)
----------------------------------
For the following informations, see basic Technical
Guide 3303
For the following informations, see document
«General information for Calibres 3200, 3201,
3202, 3203, 3205, 3301, 3303, 3313 and 3603»
Complete revision of the document
Modifications of Technical Guide versions for Calibre 3205
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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205