The recent post by
@Spacefruit (
https://omegaforums.net/threads/one-i-am-keeping-a-145-022-74.108243/) and the FS listing by
@Norfolk (
https://omegaforums.net/threads/ohp...issue-w-bracelet-extract.107892/#post-1420596) got me thinking about the 31x serial -74s again and I decided it was finally time to get an extract for my own watch. So I popped the serial number from my -74 into the form on the Omega website and waited. Eventually, the pdf became available. Wanna see something wacky? BOOM!!
A 31x serial number and a 1976 production date. So now we have two extracts of the kind I had never seen when I started this thread. The first being the one posted by
@ndgal above. This combination of date and serial number is, of course, way out of whack in relation to the rough temporal order of most other speedies. But it is entirely consistent with the known production run of the -74s, acknowledged serial ranges, and the well-worn story about movements sitting around on the shelf before being put into watches and shipped.
The really interesting thing here is that so far only two such extracts have surfaced and they are both relatively recent, having been generated around or after the time of changes to the extract process described variously in threads like these:
https://omegaforums.net/threads/no-extracts-from-the-archives-until-summer-2019.94651/
https://omegaforums.net/threads/new-improved-process-for-omega-extract-of-the-archives.99874/
So, it could be that the anomaly that originally motivated this thread has been "fixed" as part of the recent changes. Given the dates on the extracts shown in this thread, in order for this idea to be plausible, the "fix" must have occurred around May of 2019, which just so happens to be when the extract service closed for upgrades. An observation that could speak to this would be to obtain a new extract for a 31x -74 that already has an older extract showing a 1971 production date. However, I'm not sure there's much chance of an owner investing in a second extract for one of these, which after all, are not the highest priced vintage speedies. A recently generated extract showing a 31x /1971 result would perhaps also put an end to this idea.
Anyway, I guess the punchline is that in the absence of further observations, it seems possible that the extract results for these 31x -74s may differ systematically depending upon whether the extract was generated before or after recent changes to the extract process: circa 1971 production dates for the former and circa 1975/6 production dates for the latter, with the changeover taking place around May 2019. As always, if anyone has any evidence to help clarify this story, I'd love to see it.