A 2021 Tudor Black Bay GMT ref. 79830RB featuring the iconic red-and-blue “Pepsi” aluminum bezel, matte steel case, and in-house MT5652 GMT movement. Very good condition with light, honest wear. Complete set with boxes and warranty card dated February 2021. A true traveler’s GMT built for daily use.
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Full Description
Offered here is a 2021 Tudor Black Bay GMT, reference 79830RB—a modern tool watch executed the traditional way. The 41mm stainless-steel case carries Tudor’s purposeful matte finishing and balanced proportions, while the bi-color red and blue aluminum bezel delivers instant recognition without excess. This is functional design, not theatrics.
The black dial is clean, legible, and unmistakably Tudor. Snowflake hands provide excellent visibility, while the red GMT hand independently tracks a second time zone—proper traveler functionality, done correctly. Inside beats Tudor’s in-house MT5652 caliber, COSC-certified and engineered for real-world reliability with a robust architecture and 70-hour power reserve. No gimmicks, no fragility.
Condition is very good overall, with only light, honest wear visible on the case and clasp consistent with careful ownership. Nothing distracting, nothing concealed. The watch presents clean on the wrist and wears exactly as intended.
This example includes the inner and outer Tudor boxes and the original warranty card dated February 2021, making it a correct and complete set. A serious GMT for someone who values substance, durability, and long-term usability over short-term hype.
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Keyword Block
Tudor Black Bay GMT, Tudor GMT Pepsi, 79830RB, Tudor Pepsi Bezel, Tudor Black Bay 41mm, Tudor MT5652, Tudor In-House GMT, COSC Tudor GMT, Tudor Steel GMT Watch, Tudor Travel Watch, Tudor Full Set 2021, Swiss Automatic GMT, Luxury Tool Watch
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Brand: Tudor
Model: Black Bay GMT
Reference: 79830RB
Year: 2021
Country/Region of Manufacture: Switzerland
Condition: Pre-Owned – Very Good
Gender: Unisex
Age Group: Adult
Style: Luxury Tool / Travel Watch
Display: Analog
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Case
Case Material: Stainless Steel
Case Color: Silver
Case Size: 41 mm
Case Thickness: Approx. 14.6 mm
Case Shape: Round
Case Finish: Satin / Matte Brushed
Bezel Type: Bi-Directional 24-Hour
Bezel Material: Aluminum (Red/Blue)
Crystal: Sapphire
Caseback: Solid Stainless Steel
Crown: Screw-down
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Dial
Dial Color: Black
Dial Finish: Matte
Hour Markers: Applied Indices
Hands: Snowflake
Lume: Yes (Hour markers & hands)
Features: Date window, GMT scale
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Movement
Movement: Tudor MT5652 (Automatic, In-House)
Chronometer: COSC Certified
Power Reserve: ~70 Hours
Escapement Type: Swiss Lever
Frequency: 28,800 vph
Functions: Hours, Minutes, Seconds, Date, Independent GMT Hand
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Bracelet
Bracelet Material: Stainless Steel
Bracelet Style: Oyster-Style
Clasp: Folding Clasp with Safety
Bracelet Condition: Light wear consistent with use
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Additional Details
Water Resistance: 200 m / 660 ft
Included: Inner & outer box, warranty card (February 2021)
Condition Type: Pre-Owned
Seller Warranty: Yes — fully authenticated and inspected