Tudor Black Bay GMT Steel — Burgundy & Blue Bi-Colour Bezel | Ref. M79830RB-0001

Colour is the first language of the Black Bay GMT Ref. M79830RB-0001. The bi-colour bezel — rich burgundy for the night hours, deep navy for the day — creates a chromatic counterpoint to the polished steel case and integrated bracelet that makes this GMT reference instantly identifiable across any dial line-up. It is watchmaking as visual grammar: information architecture that reads at altitude, under cabin lighting or in the first light of a new time zone.

Beneath the animated exterior lies the MT5652 manufacture calibre, Tudor's in-house GMT movement beating at 28,800 vph with a 70-hour power reserve. The fourth, independently adjustable GMT hand sweeps through the 24-hour bezel scale, enabling the wearer to track a home time zone without disrupting local time — the architecture of a true traveller's instrument. Snowflake hands and an unprotected winding crown affirm the Black Bay lineage with signature clarity.

Tudor built the Black Bay line on a foundation of function-first design, and the GMT evolution adds world-time utility without diluting a single element of that heritage. For the frequent traveller who wants serious complications in a watch that can hold its own in every context from boardroom to boat deck, the M79830RB-0001 is the answer Tudor was always going to give.