Extract from the archives - Omega movement in Australian made case

Hi all,

I ordered an extract for a vintage Omega Seamaster with the 601 manual movement out of interest. The piece was originally presented to an employee of General Motors Holden Australia in 1969 as a 25 year service gift.

Omega have advised that the movement was built on January 16th, 1968 and delivered to Australia where it was combined with a locally produced case. My guess would be that this was possibly done to reduce import tariffs/taxes.

I was wondering if anyone knows much about Australian made cases for Omega movements of this era? I can't find any information online about what local manufacturer may have made this case.

Any information would be much appreciated. I'm very interested in understanding the origin of this watch.

Cheers

Thanks for the info! I wonder if they made this case? Shame there's no stamp on the inside to identify it. Would love to know what the numbers 6011 and 1351000 on the case back correspond to.