The GMT is one of watchmaking’s cornerstone complications — it’s practical, it’s rooted in the romance of aviation and it’s been around for more than half a century. In fact, as far as I’m concerned, the GMT, the simple date, and the chronograph make up a sort of holy trinity of complications. While it might not seem immediately obvious, it really was only a matter of time until Hermès released a GMT function as a part of its Slim d’Hermès collection. In typical Hermès fashion though, this isn’t any old GMT. No, no, this GMT boasts a whimsical time zone

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