Truly unique? 1930's Omega Pocket Watch

Hello,
I am a long time watch collector, but new here. I have owned this watch for a number of years Occasionally, I will do a search to see if a similar watch appears on the web, but none ever has. Today I prompted AI to do some research and it came back with :

" You are holding a spectacular, highly unusual piece of Art Deco horological history. While Gruen is famous for the pentagon shape, Omega did in fact produce a very limited number of geometric, avant-garde cases during the height of the Art Deco era to compete with them." How exciting!

So, I thought that I better consult the experts, and here I am. Please let me know if you have seen anything like this and what your thoughts are.

Here are the details:
Cal 35.5L
Case number 6,894,609
Movement number 8,0298,169

The crown and stem are missing.

Thank you,
Adam

Good news and Bad news

First the good news. There is no good news

Now the bad. A check of a parts supplier shows few parts for that movement, so no comparison to other movements that might have used the same stem.

If you want to get it going and use it. Set an alert on Ebay that sends you an email if that movement is listed for sale or parts.

Might also try Dave's Watch Parts or Google vintage Omega pocket watch parts

The "why can't I find another one anywhere" question has a likely boring-but-satisfying answer, and it's checkable: look inside the case lids for the casemaker's mark.


In that era, watches for the American market were routinely imported as bare movements and cased on this side of the water - tariffs made it cheaper - so Swiss movements ended up in cases made by American case companies, chosen from the casemaker's own catalog at the jeweler's counter. A coin-silver pentagon screams that story: if inside the back you find a US case company's stamp (Wadsworth, Keystone, Star, Illinois, and friends all marked their work) rather than Omega's own medallion, then the movement is all Omega and the case never appeared in any Omega catalog - which is exactly why no search ever finds its twin. Not a marriage in the shady sense; that's how the trade worked, and period-correct. One photo of the inside covers settles it either way.


On the missing crown and stem - better news than the thread suggests: a stem is a watchmaker's routine fix, not a donor-watch hunt. Material houses still list winding stems for a wide range of Omega pocket calibers, and where a genuine one can't be had, any competent watchmaker can fit and cut a stem to the keyless works and match a period-style crown to it. It's among the cheapest parts of getting this running; don't let it stall the project. This is a really cool watch; I would keep it.


And Canuck's serial dating is the anchor worth keeping: early 1920s - so this pentagon is ahead of the Deco wave rather than riding it, which arguably makes it more interesting, not less.