Dr No[Moderator Omega - Wristscan]
37671
Hmmm. While knowing next to nothing . . .
. . . about vintage UN, that example doesn't look authentic to my eyes. Perhaps there's a UN collector here who can weigh in authoritatively. But it seems like a second-rate refinished dial. And a chronograph, to boot.
Very few chronographs perform double duty as chronometers.
Art