Omega 3205 Technical Manual

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OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-062-E - B - 3205

3205A

3205A

12’’’

Ø 27 mm

V er sion A V er sion B

1 2 3

1

23

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 certifi ed, 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 Modifi cations: 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

Modifi cations 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 modifi cations 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