Looking for info on the 2662 reference

Hi all!
I’ve come across this watch, apparently a 52 18k gold 2662 housing a cal. 342
I tried looking up that ref but could not find much online. It looks quite clean IMO!
On the side note, the back engravings apparently shows that it was a gift from Omega to one of their employees for his service.
If any one has more info on this ref and why I cannot find an other one online, please share 😀

Was looking also at this one, is there any documentation backing up this claim ?(Omega gift to employee?)

It shouldn’t be a one time thing right, are any other examples known?