Omega 1045 User Manual

Cal. 1045
1
Technical guide
1976
CALIBRE
o 31.00 mm
/
Power-reserve
Jewel number
Frequency
Angle of lift
45 h
17
28'800 A/h
53°
8.20 mm
English
1045
Movement height
31 CHRO C 12 RA PC CALD CORR CORJ A24 STS PS C60 17 jewels
Automatic wrist-chronograph with 2 pushers in the usual
position. Chronograph coupling by disc system. Hour,
minute and second hammers self-coordinated. Sweep
second hand. Central 60 minute recorder hand. 12-hour
recorder hand. Synchronization of the 3 chronograph
hands is ensured by a single wheel-train chain. Small
second hand. 24-hour indicator. Stop-second device.
Day-date indicators with rapid corrector. Automatic
unidirectional winding of simple conception. Fine
adjustment system with mobile stud-holder. Removal of
barrel without disassembling of movement.
of the winding crown
Position 1 (against the case) manual winding
Position 2 (middle) rapid correction of date by turning the
winding crown in clockwise direction
rapid correction of day by turning the winding crown in anti-
clockwise direction
Position 3 (exterior) time setting
stop of small second
MANIPULATION
of the chronograph pusher
Pusher "A" 1st push = start of hands C - D - E
2nd push = stop of hands C - D - E
Pusher "B" push = reset to zero of hands C - D - E
when stopped.

Omega 1045 Specifications

General

Brand	Omega
Model	1045
Category	Watch
Language	English

Summary

Calibre 1045 Technical Specifications

Movement Dimensions

Diameter and height of the movement.

Power Reserve and Jewels

Duration of power reserve and number of jewels.

Frequency and Angle of Lift

Operating frequency and angle of lift.

Calibre 1045 Operation and Controls

Chronograph Pusher Functions

How pushers A and B control the chronograph.

Winding Crown Positions

Functions of the winding crown in different positions.

Disassembling - Exterior

Disassembling - Automatic Mechanism

Rotor and Rotor Pinion

Disassembly of the rotor assembly and pinion.

Disassembling - Motor, Wheel Train, Escapement, Upper Mechanism

Mainspring and Barrel

Procedures for letting down the mainspring and accessing the barrel.

Chronograph Runner and Second Hammer

Steps for removing chronograph runner and second hammer.

Disassembling - Day and Date Mechanism

Disassembling - Day/Date & Lower Chronograph

Lower Chronograph Mechanism

Disassembly of 24-hour wheel, runner, heart, hammers, and levers.

Disassembling - Hand Setting Mechanism

Cleaning Procedures

Important Cleaning Notes

Crucial information regarding cleaning agents and residues.

Assembling - Hand Setting Mechanism

Winding Stem and Setting Lever Assembly

Procedures for assembling winding stem and setting lever.

Assembling - Wheel Train & Chronograph

Second Hammer and Chronograph Runner

Assembling the second hammer and chronograph runner.

Assembling - Chronograph Mechanism (Dial Side)

Operating Lever and Hook Assembly

Assembling the operating lever and hook.

Assembling - Escapement and Adjustment

Pallet Fork and Pallet Cock Oiling

Oiling the pallet fork and pallet cock.

Assembling - Automatic Device

Stop Click and Reduction Gear

Assembling stop click and reduction gear.

Automatic Device Bridge and Rotor Oiling

Assembling bridge and oiling rotor.

Hand Fitting and Function Checking

Dial Fixing and Chronograph Zero Position

Fixing the dial and setting chronograph to zero.

Chronograph Operation Checks

Verifying start/stop, reset, and synchronization of chronograph.

Function Checking (Cont.) & Casing-Up

Date/Day Change and Winding Checks

Checking date/day changes and automatic winding procedures.

Casing-Up Preparations

Ensuring pushers function and lubricating gaskets.