When did Omega start using OM on gold dial

hant26 · Oct 2, 2025

Hello fellows OFs,
I saw this 168.006 for sale (5k€). It has OM dial. The serial number indicates this watch was produced in 1962. But I thought Omega didn’t use OM until late 60’. So what do you guys think!? Thank you for your opinion.

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hant26 · Oct 2, 2025

After reading this thread (https://omegaforums.net/threads/the-ultimate-constellation-thread.160877/) I think it’s a pass.

OM SWISS MADE OM: stands for French 'Or massif' and indicates a solid gold dial. This indication was introduced in 1973 amongst watchmakers who are members of the APRIOR (l'Association pour la Promotion Industrielle de l'Or). Older solid gold dials do not bear this indication,

Tony C. · Oct 2, 2025

The "OM" to the left of SWISS does mean "Or massif", but the one to the right of "MADE" mean "On Monday". 😀

Peemacgee · Oct 2, 2025

Apart from the date:
The papers say 168.005
The dial doesn’t have the look of a gold dial of the era.
I.e. the wide flat onyx inserts.

From memory, I think you will find Omega earlier than ‘73 with OM on them.
Late 60s and early 70s spring to mind.

hansmaulwurf · Oct 2, 2025

Hi,

it’s a very famous thing at the Speedmaster BA145.022 as well, produced from 1969 to ~1972.

https://www.fratellowatches.com/wp-content/uploads/2018/11/SpeedmasterBA145022-69-FullSet-3.jpg

Source: Fratellowatches

Omega wrote this on the dial of the re-Edition in 2019 again:

https://omegaforums.net/posts/2015330/

hansmaulwurf · Jul 5, 2022

After a short weekend trip to the beach and a cleaning shower,
my Speedy looks much more yellowish again 😀

BR
Hans