Tudor Black Bay 58 GMT

Ref 7939G1A0NRU

This is reference 7939G1A0NRU, the 39mm stainless-steel GMT Black Bay 58 in the coke colourway.

Inside is Tudor’s MT5450-U automatic manufacture calibre, which is both COSC and METAS Master Chronometer certified. It offers approximately 65 hours of power reserve and, importantly, this is a true traveller’s GMT with an independently adjustable local hour hand.

The watch is in excellent condition. It has been worn, so there are some very light marks to the polished surfaces but presents like a 2025 watch that’s been barely worn.

It’s also a full set, complete with Tudor inner and outer boxes, warranty card, booklets/manuals and original swing tag. The warranty card is dated Feb 2025, so the watch has the vast majority of Tudor’s five-year manufacturer warranty remaining until Feb 2030.

At just 39mm, the dimensions are a big part of the appeal. It wears considerably more compactly than the original Black Bay GMT while still giving you all the functionality of a proper GMT sports watch.