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Tudor Black Bay GMT Ref. 79830


Pre-Owned Tudor 41mm Black Bay GMT, Black Dial, Stainless Steel Bracelet, Ref. 79830

The Black Bay GMT 79830 is a robust and practical timepiece designed for modern explorers. Its 41mm stainless steel case is paired with a bi-directional rotating bezel featuring a distinctive 24-hour red and blue aluminum insert, allowing for tracking of two time zones simultaneously. The black dial is highly legible with luminescent hands and hour markers, while a dedicated GMT hand provides a quick reference for the second time zone. A date function at 3 o’clock adds to its functionality. This watch is powered by the self-winding MT5652 caliber movement, COSC certified for exceptional accuracy. It’s fitted with a stainless steel bracelet that’s as durable as it is stylish. The Tudor Black Bay GMT 79830 is the perfect companion for those who demand precision and versatility in a timepiece, both in the boardroom and during adventures abroad.

Only 1 left in stock

Categories: , , SKU: 210000006254

Additional information

Band Material

Stainless Steel

Band Type



Rotating, Bi-directional, Aluminum, 24-Hour

Box and Papers

Box and Papers





Case Material

Stainless Steel

Case Size





Date, GMT/World Time


Screw Down

Crystal Material


Dial Color





40mm – 42mm


1-Year Watchworks Guarantee

Item ID0006254
Model #79830
Model NameBlack Bay GMT
Year Producedca. 2020
Serial NumberQXXXXXX


Since 1936 when Hans Wilsdorf acquired the Tudor name, Tudor watches have been associated with Rolex.  Even with the launch of Tudor as a separate company in 1946, Rolex continued to play a major role that reflected Hans Wilsdorf’s vision of a brand that would be more modestly priced than a Rolex but still maintain the high standard of dependability.  Tudor’s first models, such as the 1952 Oyster Prince had features unique to the Tudor brand but still were based on Rolex components, primarily the Oyster case.  This successful relationship continued with the Tudor Advisor alarm watch and the Tudor dive watch that was introduced only a few months after the introduction of the Rolex Submariner.

With the second generation of the Tudor dive watch, Tudor began to further define itself as a unique brand.  The French Navy requested a modification to enhance underwater legibility, which led to the now-iconic “snowflake” hands, with a larger square on the hour hand to easily distinguish it from the minute hand.  Also, the logo was changed from the previous Tudor Rose to the Tudor Shield that we recognize in a modern Tudor watch.  Around this same time, Tudor introduced its first chronograph named Oysterdate, which had a strong graphic and unique design, which still attracts fans with the modern reissued watch.

Near the beginning of the new century, Tudor ceased sales in the USA due to a lower demand.  When Tudor returned in 2013 with design elements from their historical models that also included larger cases, in-house movements and modern materials, watch aficionados embraced Hans Wilsdorf’s founding desire, to manufacture an affordable watch with high standards.   Tudor continues to be associated with Rolex, but with its own unique collections, Tudor has made a place of its own among watch enthusiasts.