79830RB, BLACK BAY GMT, PEPSI

A Tudor Black Bay GMT ref. 79830RB, the one everyone calls the Pepsi. The bidirectional bezel splits the day into blue and red, with Tudor's matte finish taking the red toward burgundy, a softer tone than the glossy versions it nods to. Below it, a black domed dial with the snowflake hands Tudor has used since the 1960s, plus a red-tipped GMT hand that tracks the second time zone. The 41mm steel case houses the manufacture calibre MT5652, a COSC-certified movement with a 70-hour power reserve. The local hour hand jumps independently, which makes it a true traveler's GMT. It is fitted to a steel bracelet.

Tudor introduced the Black Bay GMT at Baselworld in 2018, and the reaction was immediate. The two-tone GMT bezel had been part of watch culture since the 1950s, when the format was built for pilots crossing time zones, but finding one at this level of finishing and with an in-house movement was rare. Tudor answered with a true GMT built on its own manufacture calibre, at a time when the brand was still rebuilding its reputation as more than Rolex's sibling. The Black Bay line itself, launched in 2012, borrowed its cues from Tudor's historic dive watches. The GMT took those codes and pointed them at the airport.

Start with the hour hand. On the MT5652 it jumps in one-hour steps without stopping the watch, which is how a real traveler's GMT should behave, and it is not something every GMT offers. Then look at the bezel: matte blue and a faded, almost burgundy red, a color choice that makes the watch feel already lived in. The snowflake hands give it an identity that is entirely Tudor's, not a copy of anything. Add 70 hours of reserve and you can take it off on Friday and still have it running Monday. It is one of the defining sports watches of its decade. Curated with intent.