Dropping to 39mm and adding a rose gold bezel changes the entire personality of this Zulu Time — it reads as a dress-adjacent GMT rather than a tool watch, even though the manufacture automatic caliber and 100-meter rating underneath are identical in spec ambition to the larger steel versions I've catalogued. The smaller case is the one I'd steer toward for a narrower wrist, where a 42mm GMT with a ceramic bezel starts to look like it's wearing you rather than the reverse. The rose gold accent against the black dial and steel bracelet is a genuinely well-judged color pairing — I score contrast like this higher than a monochrome case when it's this restrained. It's a GMT that happens to also work as an everyday steel watch, which is the harder brief to satisfy.