Likely the bracelet end is a bit loose, causing a “click” as it contacts the case during handling.
I'll record it and post later. To clarify, I don't think it is part of the the normal pallet fork escapement wheel tick tock. The intermittent anomaly is much louder. I haven't done any empirical testing. But the noise might be louder when the mainspring is fully wound. I didn't notice it this morning when the power reserve was low. I fully wound it and the noise presented itself shortly thereafter. Again, this doesn't prove the mainspring tension is the culprit, just an observation...
I also called an Omega Boutique, asked for their technician and described the problem. He said they'd have to send it to the Omega service center in Seattle with a 5 month turn around time. I asked him if there were any known issues with the early production 3861 movements. He said "Not that I'm aware of."
Longtime lurker here. I just became a member so I could chime in and say mine does the exact same thing.
When it's fully wound and I'm sitting at my desk I can hear it. It's two or three times a minute and sounds like a fingernail lightly tapping the crystal. I don't have any reason to suspect that it's a problem, but it's...different. You can really hear the movement through the plexi crystal anyway, so maybe something is just getting amplified? Why does it go away, or at least get too quiet to hear, as the power runs down? I have no idea.
July 2022 new from an AD. I've worn it almost every day with nothing wonky except for a noise we can't explain. Everything works great and it's running about +1. 5 - +2.5 SPD.
Regarding the noise: I don't remember hearing it when it was brand new either. It might be more accurate to describe it as clicking sound, maybe something like a loud date change.
I'm really interested to know what it is, but heck, as long as it's doing what it's supposed to I'm not going to stress too much. I've still got enough warranty to hold off surgery.
Longtime lurker here. I just became a member so I could chime in and say mine does the exact same thing.
I followed this thread with some curiosity when it appeared a few weeks ago. This afternoon I decided to give my 3861 Hesalite Speedy (February, 2021) a full wind and listen to it next to my ear. Sure enough, intermittently a few times a minute there is an audibly louder click sound, just like previous posts describe. Huh, interesting. The watch still keeps great time and has been running for much of the past few years.
