quattro[Moderator]
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Vacheron Constantin World Time
A 37 time zones world timer ? Yes, Vacheron Constantin did it !
The only one I've handled in real life is the 2015 rose gold and I really loved the dial. The case of the Traditionnelle, though, is pretty chunky.
Here are all the variants I could find in both in the Traditionnelle and Overseas collections.
Enjoy!
(Photos credit: multiple websites)
TRADITIONNELLE 


86060/000R-9640 & Caliber 2460 WT (2011)


86060/000P-9894 (Only Watch 2013)


86060/000R-9965 /00 (unique piece for the mexican Instituto Nacional de Antropología e Historia, 2013)


86060/000P-9979 Excellence Platine Collection (2014)

7700V/110A-B176 (2016)