Certainly the most impressive movement that I have ever seen on an eBay "chronometre"... https://www.ebay.de/itm/ANCIENNE-MO...254879?hash=item33dd30301f:g:B-kAAOSw~HBaMT9IPurchases made through these links may earn this site a commission from the eBay Partner Network
The only surprise in the Kelton information from Mikrolisk is that Benrus used the name, in addition to the other firms listed.
Speaking of chronometres, i call dibs on anyone with chronometer releases from brands (Mido, Tissot, Junghans, Cyma, Certina and Eterna (if they exist))
Junghans were prolific chronometer makers and they aren't particularly expensive. I got one as a bonus in my lot of Omegas back in October. Calibre J82/1.
https://omegaforums.net/threads/of-dibs-app-how-do-i-check-the-history-when-i-decide-to-sell.68037/ See the post by @dsio half way down the page.
To be honest, i take an interest in any brands that came up with their own chronometer releases. That even includes the no-names to mid tier brands.
Oohh... when Tony asks something like that, get excited! I was able to snag this chronometre from him:
Well I don't know what i'm seeing in the thread starter image but today I found an interesting looking Oris watch that had a movement much smaller than the case and shaped like a tank or lozenge ladies watch movement. The inside of the case looked to be filled with plastic as a spacer. The small movement was signed Oris. The case had an unusual shape not round and not quite square. perhaps that was the only movement that would fit in the odd shaped case.