Tudor was founded in Geneva in 1926 as a sister brand to Rolex, built to offer Swiss-made professional tool watches at a more accessible price point. The Black Bay GMT S&G, introduced in 2021, draws a deliberate line back to the great two-tone GMT watches of the 1950s and 60s — a period when the combination of steel and yellow gold on a travel watch carried genuine prestige. Among enthusiasts, the brown and black bezel configuration has quickly earned it the "Root Beer" nickname, a reference to the legendary Rolex GMT-Master variant that inspired it.

Reference M79833MN-0001 is a 41 mm stainless steel automatic GMT watch, 14.6 mm in thickness, with a polished and brushed case and a yellow gold screw-down crown bearing the Tudor rose in relief. The black domed dial carries Tudor's signature snowflake hands and round luminescent hour markers in gold tone, with a date window at three o'clock and a central red GMT hand for tracking a second time zone. The bidirectional rotating bezel features a steel core with yellow gold cap and a brown and black anodised aluminium 24-hour disc — functional for reading a third time zone at a glance. At its heart beats the Tudor Manufacture Calibre MT5652, COSC-certified, with a 70-hour power reserve. The domed sapphire crystal sits above. Water resistance is rated to 200 metres. The watch is fitted on a stainless steel and yellow gold bracelet — with solid yellow gold centre links at six and twelve o'clock and gold-capped steel centre links throughout — with a folding clasp and safety catch.

This Tudor Black Bay GMT Steel & Gold is in near mint condition and comes as a full set.