








Hi Simon,
Hi Bill and all the others who are interested in 30 mm Omega chronometers.
This is an interesting find... And there is no doubt about the authenticity as it is well documented by Omega.
As we knew already for the EARLY 30 mm chronometers (in simple watch cases which were also used for the non chronometer version):
ref. 2254 with "SCREW on" back, CENTER second
ref. 2244 with "PRESS on" back, CENTER second
we see here:
Ref. 2192 with "PRESS on" back, SUB second
I think we should be prepared for a "missing" Ref. XXXX with SUB second SCREW back to appear...
I am curious how long we have to wait...
And who knows?
Perhaps there is also a missing Ref. XXXX for the screw back 2410 with SUB second... ??
Never say never when talking about vintage Omegas...
just my thoughts
Erich
.. between the 2192 and the 2244 might be.
Hard to imagine the factory would take the effort to reduce the casing by ~1mm just because the subsec. version is a fraction thinner than the SC movement?
During WWII Omega exported a large part of it's production via Portugal - wondering if this was the final country of destination... if only grandfather was alive, maybe he could have some recollections about the watch' story.
Anyway, most interesting - curious to see better photo's!
Hi Ben,
yes, it is an interesting thought you have there...
There are 2 explanations which may be likely:
The Ref 2192 case could well have been the predecessor of ref 2244 and the case remained the same size, but was
equipped with a center second movement later... and so got a new ref # to make a distinction between the 2 versions.
Or the Ref. 2192 was really somewhat more slim than the 2244 case related to the flat sub second movement.
Maybe Simon can take a precise measurement with a caliper - you and me, we both own a ref. 2244 and could take dimensions
for comparison... I am curious too!
kind regards
Erich





Hi Simon,
Please take measurements of
1) diameter of the case (without the winding crown) - best taken between 10 and 4 o´clock...
2) thickness of the case - (please try to measure the metal part only, without the crystal - is not easy...)
3) distance between the lugs (where the strap is installed)
A caliper would be very useful.
Thank you and best regards
Erich

Hi Simon,
thank you very much - you have made a great job! Much appreciated...
BTW did you receive my private message?
kind regards
Erich
Hi Simon,
hi all,
thanks to Simon´s precise measurement I have been able to compare the dimensions with my ref. 2244 case and I must say -
given some tolerances in case production around 1940 - it is virtually the same size and other proportions (tiny differences...).
So what is to conclude out of this?
I think that Omega used the same press back case for both the references 2192 and 2244 and the different reference numbers
were given due to the difference in the movements only.
Whereas ref 2192 has a sub sec. movement - ref 2244 has a center second movement - the rest is equal...
Here is the picture of my all original ref 2244 - has still the factory original crystal with the Omega logo in the middle...

and the side view shows the same profile and proportions - sorry for the poor picture quality - little daylight - and I had to avoid flash...

I can not prove my theory but it seems logical...
Just my thoughts
Erich
.. with a ck2244 from 1948 I arrive at the same conclusion as Erich, there is virtually no difference between the 2192 and 2244 dimensions.
Funny, was half & half expecting the 2244 snap-on back to be slightly more bulbous (because of the SC-movement), but even that is not so.
Makes you wonder indeed if we will ever see an étanche version (screw-on back) of Simon's watch, as Erich suggested, and what it's ref.# could be. Or maybe plainly 2254? - who knows.
cheers, Ben.

Hi Ben,
thank you for chiming in... your comment is much appreciated!
So it seems as if we "cracked the nut"...
BTW your example looks very fine indeed - have you changed the dial or hands?
I do not recall exactly how it looked when you sent me a picture long ago...
Kind regards
Erich
..Erich, always much appreciating your input. And very nice to meet Simon's little known ref.2192 here.
Concerning the 2244: no, nothing was changed, although I have an attractive Rg work ready to be 'plunged' in. Still looking for a suitable 'chronomètre' dial however. The case is in fine condition - for the present dial I' m inclined to say it has been re-done at some time. Brand name is pretty thin printing, with the O (mega) slightly larger than the following capitals. For the rest looking well, logo in relief (in silver colour as are the indices), good minute markers. Cyphers 3-6-9-12 are blackened-out (matt) and this doesn't seem to be the result of oxydation or so. Anyway it is bound to make place for something else if such a part should pop up. Winding crown (with logo) is obviously a replacement.
Perhaps interesting to report: recently I acquired a 23.4SC with a case which is virtually a 'scaled down' version of the 2244 > same stepped lugs and bezel, like a smaller but identical brother. Diameter is ~32,5mm. Ref. is unknown to me, only the case# 9'968'xxx. According to the worksnumber (9'60m.) it should date to 1942/43. On this watch I also like to replace the dial (which I don't like) and have the movement fixed. When I'm happy with it I'll show some pictures.
best regards, Ben.
Hi Ben,
I think I know what you mean with the 23,4 SC - I had one on my radar just recently... was it on the "bay" ?
I decided not to buy it because of the small diameter, but I recognized the same case design like a small brother of 2244...
Kind regards
Erich
"During WWII Omega exported a large part of it's production via Portugal - wondering if this was the final country of destination?"
My guess is probably not. I've received some documentation from Omega saying that some of the "U.S. Army" watches (Ref. 2179) were delivered through Portugal. I think the same may have been true for some of the WWW British military watches produced after 1939.
Since Switzerland and Portugal were both neutral countries during WWII is it likely that agents in Portugal arranged for final delivery to their Allied destination without alerting the German authorities nosing about.
Then again, one never knows for sure,
gatorcpa
do all the rg movements have the precision regulater or do the earlier ones have the normal regulater as seen in the above watches. the reason i ask is that my local auction house has a 1947 Omega described by them as a 30T2SCPG. it doesnt have 'chronometer' on the dial, but i'm guessing that they might have misread rg for pg and it could be a bit of a sleeper. its in 19kt case with a pretty good dial so might be an interesting prospect.
i can supply pic if needs be.
Graham
Maybe they have misread (shock absorbing system) PC for PG Graham?
If a movement picture shows the Incabloc-spring on the balance-pivot and no micro-regulator, well then you know enough: no Rg chronometer version...
cheers, Ben.