Omega 1045 Quick start guide

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.

1976
Cal. 1045 2
DISASSEMBLING
Parts in synthetic material : should be manipulated carefully and not held by the functional sections.

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Cal. 1045 3

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Cal. 1045 4

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Cal. 1045 5

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Cal. 1045 6
ASSEMBLING

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Cal. 1045 7

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Cal. 1045 8

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Cal. 1045 9

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Cal. 1045 10

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Cal. 1045 11

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Cal. 1045 12

1976
Cal. 1045 13
1000 Plate
1002 3/4 plate bridge
1005 Pallet cock
1026 Rotor
1030 Balance cock
1031 Bridge for automatic
device
1040 Stem cock
1046 Rotor support
1100 Ratchet wheel
1101 Crown wheel
1104 Clicking spring
1123 Stop-lever
1168 Crown wheel lid
1202 Barrel drum
1204 Barrel axle
1208 Mainspring
1212 Intermediate wheel
1243 Fourth wheel
1305 Escape wheel
1316 Pallet fork
1327 Balance complete
1334 Regulator
1346 Shock-absorbing
device for balance, lower
1347 Shock-absorbing
device for balance, upper
1357 Regulator driver
1363 Stud holder
1400 Rotor axle
1402 Rotor bearing
1412 Impulse click
1414 Stop click
1429 Rotor pinion
1432 Reduction gear
1437 Driving gear for
ratchet wheel
1451 Gib of rotor
1705 Chronograph runner
1712 Coupling runner
1724 Coupling yoke
1728 Second hammer
1731 Coupling yoke spring
1735 Friction spring for
chronograph runner
2583 Screw for 3/4 plate bridge
2583 Screw for pallet cock
2583 Screw for balance cock
2673 Screw for bridge for
automatic device
2690 Screw for stud
2691 Screw for regulator
adjustment
2694 Screw for impulse click
5140 Rivet for rotor axle

1976
Cal. 1045 14
1000 Plate
1106 Winding stem
1107 Clutch wheel
1108 Winding pinion
1109 Setting lever
1110 Setting lever spring
1111 Yoke
1112 Yoke spring
1113 Setting wheel
1169 Setting wheel spring
1218 Cannon pinion
1231 Hour wheel
1246 Minute wheel
1262 24 hours wheel
1268 Hour wheel spring
1503 Date and day
jumper
1511 Date and day driver
1516 Date indicator
1527 Support for date
indicator mechanism
1529 Date and day
jumper spring
1530 Date and day
corrector
1554 Date indicator guard
1555 Day indicator guard
1559 Double date setting
wheel
1564 Date indicator
driving wheel
1580 Date indicator
7528 Date and day
setting wheel corrector
1715 Pillar wheel
1718 Operating lever
hook
1719 Operating lever
hook spring
1720 Operating lever
1727 Pillar wheel
jumper
1737 Intermediate wheel
for hour recorder
1760 Minute heart
1763 Minute recorder
bridge
1783 Hour and minute
hammer
1784 Operating lever for
hammers
1785 Hammer cam
1788 Hour recording runner
2583 Screw for setting lever
spring
2583 Screw for minute
recorder bridge
2583 Screw for pillar wheel
jumper
2673 Screw for date
indicator guard
2674 Screw for support for
date indicator mechanism
2689 Screw for stem cock
5133 Date indicator driving
wheel stud
5139 Pillar wheel stud