Omega 1040

Last updated: August 4, 2025
Close-up of an Omega Swiss watch movement showing gears, screws, and engraved metal parts.

Brand

Caliber Number

1040

Production Period

1970 – 1975

Lignes

13.75”’

Diameter

31.0 mm

Height

8.0 mm

Power Reserve

Unconfirmed

Frequency

28,800 bph (4 Hz)

Jewels

22

Escapement

Swiss Lever Escapement

Anti-Shock Device

Incabloc

Hand Count

6+

Manufacture Region

Unconfirmed

Functions

Automatic Chronograph (Central Min), 12-hr Recorder, 24-hr Indicator, Date

Omega 1040 Description

The Omega 1040, based on the Lemania 1340, was Omega’s first automatic chronograph, introduced in 1970. This large, robust caliber is famed for its innovative central minute counter for the chronograph, offering superior legibility. It also features a 12-hour recorder, 24-hour indicator, small seconds, and date. It powered iconic 70s models like the Speedmaster Mark III and Seamaster “Big Blue”.

Watches Using The Omega 1040 Caliber

A stainless steel Omega Speedmaster Mark III 176.002 wristwatch with a blue dial, silver hour markers, three subdials, a date window at 3 o’clock, and a tachymeter scale, shown on a matching metal bracelet.
Speedmaster Mark iii

Omega Speedmaster Mark iii 176.002

1971-1974
41mm
A stainless steel Omega Seamaster 176.007 chronograph wristwatch with a blue dial, three subdials, a date window at 3 o’clock, tachymeter scale, and a metal link bracelet.
Seamaster

Omega Seamaster 176.007

1972-1976
38mm