Omega Speedmaster Prototype

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skipjack

·Mar 6, 2026

https://www.chrono24.de/omega/omega...44773038.htm?searchHash=a6ee2bab_7mXvTd&pos=2

I'd never seen this one before but of course fratello has the knowledge

https://www.fratellowatches.com/speedy-tuesday-omega-speedmaster-50th-anniversary-prototype/#gref

 

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Ron_W

·Mar 6, 2026

Maybe add some pictures yourself to get some more respons, not many like to click on links.
I think you mean the version with the date window ?

 

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skipjack

·Mar 6, 2026

Ron_W

Maybe add some pictures yourself to get some more respons, not many like to click on links.
I think you mean the version with the date window ?

yes will add one in

 

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Caliber561

·Mar 6, 2026

I’m intrigued by how thin it appears to be. The crystal seems like a third of the height of normal hesalite bubble.

 

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Makesbelieve

·Mar 6, 2026

@Gael.Bx shared one in the Speedmaster Collection thread (top right of this picture):

https://omegaforums.net/posts/2555335/

Gael.Bx · Jan 9, 2026

some are missing

Perhaps @Gael.Bx is one of the two people mentioned in the Fratello article.

 

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padders

·Mar 7, 2026·Oooo subtitles!

It’s a Broad Arrow based prototype, not Lemania powered so isn’t really a Pro at all.

 

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skipjack

·Mar 7, 2026

padders

It’s a Broad Arrow based prototype, not Lemania powered so isn’t really a Pro at all.

you're right of course which makes it even more strange
the enamel dial 50th anniversary doesn't claim to be a Pro

 

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dsio

·Mar 7, 2026·Ash @ ΩF

skipjack

you're right of course which makes it even more strange
the enamel dial 50th anniversary doesn't claim to be a Pro

Being a prototype it’s not really claiming to be anything, it just happened to be the right sized dial for a 42mm watch and probably had that date window cut into it and a window stamped around it.

I’d also wonder how it’s attached to the movement as it wouldn’t be surprising if they just cut off the Cal 186x spec dial feet and glued it since it’s a mockup if they don’t line up with Cal 3301

It’s a bit like the Mercedes AMG SLS test mule that was built on a Dodge Viper chassis since it was the closest fit

 

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Gael.Bx

·Mar 10, 2026

Makesbelieve

@Gael.Bx shared one in the Speedmaster Collection thread (top right of this picture):

https://omegaforums.net/posts/2555335/

Gael.Bx · Jan 9, 2026

some are missing

Perhaps @Gael.Bx is one of the two people mentioned in the Fratello article.

I had done a review of this watch on the French forum.

https://forumamontres.forumactif.co...50eme-anniversaire-1957-2007-et-son-prototype

 

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Gael.Bx

·Mar 10, 2026

other informations here

https://omegaforums.net/threads/prototype-omega-phillips-auction.151178/

Thread 'Prototype Omega Phillips Auction' ·

Browsing the Phillips site and seen this coming up at the auction in November. Interesting history, developed as a prototype on request by NASA. If this checks out then there’s going to be a few...

Tad · Oct 6, 2022

 

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skipjack

·Mar 10, 2026

great will register and take a look at the review. Thanks!

 

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Gael.Bx

·Mar 11, 2026

with pleasure...