Really interesting thread and some great looking watches here.
Here is my 30T2 SC passed on to me by my Dad - he wore it pretty much everyday from when it was passed to him in the 1970s by his father. I always remember being in awe of the smooth sweeping second hand.
It is a 1940s 2391-1 case. I haven't seen the same face on the thread (or anywhere else) . It looks to be in good condition for its age, I don't know if it has ever been restored or replaced?
Sadly it doesn't run at the moment, and it's one of the few watches on this thread that I wouldn't wear myself - I'm not a fan of the gold plate unfortunately. Not sure whether to polish it off, re-case it, or just store it away and treat myself to a different Omega!