Great points everyone. Much obliged for the opinions and comparisons. And great point @TheTukker regarding the Master Geographic. I had only seen that one with a silver dial, but in black I do find it quite fetching. I shall have to find one to try on!
I decided to take this quandary to my local pre-owned watch boutique this morning and kick some tires, whereupon I endeavored to try on many watches, including the Nomos Zurich (white dial), the IWC Pilot Worldtimer, a brand new JLC MUT Moon (I'm in love) and this:
The JLC Master Compressor Geographic.
The IWC is out of the running. I just didn't care for the look and feel of it. I did like the Nomos. In particular, I enjoyed how simple it was to switch time zones with just a click. As a tool watch it is very handsome and readable. But then I tried on the JLC.
Pardon the lighting/photography
While my brain and sensibilities loved the Nomos, the Jaeger evoked a much more visceral reaction. However, I wouldn't call it ideal, with those two gigantic crowns. But the quirkiness of that aspect grew on me and, being on the younger side, the piece did look quite at home on my wrist. And he wanted half of MSRP for it...
The shop did have a Master Geographic (previous model) in silver dial with one of those beads-of-rice bracelets. Not exactly my cup of tea. But with a black dial as Tukker suggests, it might be perfect. To be continued.
And gentlemen I overheard something very interesting in the shop though I cannot find photos to back it up. It seems Jaeger is about to release a MUT Moon with a black dial.