I seem to be loving JLC at the moment, and picked another one up today that’s meant to scratch my Master Calendar Moon itch for a while. It’s a Master Geographic from the early naughties, but the rare “Master Black” version. In other words, it has a black dial, and not very many of these were made.
I like the second time zone complication in particular, and will use this when traveling, I think. It came with the bracelet (a kind of beads of rice affair, with the links attached through an unusual spring bar arrangement) but it’ll be worn on leather. It may also be treated to a very light polish, depending on how severely my OCD kicks in.