Tudor Black Bay GMT 79830RB

The Tudor Black Bay GMT Ref. M79830RB, fondly nicknamed the “Pepsi” for its iconic red and blue bezel, is a masterful blend of vintage-inspired design and modern tool-watch functionality that has become one of the most sought-after models in Tudor’s contemporary lineup. Housed in a robust 41mm stainless steel case with a thickness of 14.6mm, this timepiece features a distinctive bi-directional rotatable bezel with a blue and red anodized aluminium insert, paying homage to the classic GMT-Master aesthetic of the 1950s. The matte black dial provides a highly legible canvas for the brand’s signature “Snowflake” hands and applied hour markers, all filled with luminous material, while the striking gilt accents add a touch of warmth and vintage character. The dial also includes a practical date window at 3 o’clock and a central GMT hand, tipped with a red arrow, enabling effortless tracking of a second time zone for the modern traveler. At the heart of this horological instrument beats the in-house Manufacture Caliber MT5652, a COSC-certified chronometer movement with a bidirectional rotor system, a silicon balance spring for superior anti-magnetic performance, and an impressive 70-hour power reserve. With a water resistance of 200 meters, a screw-down crown, and a domed sapphire crystal, this watch is engineered for everyday robustness. Completed by a solid stainless steel bracelet with a folding safety clasp, the Black Bay GMT “Pepsi” is a rugged, versatile, and highly collectible timepiece that offers exceptional value and unmistakable presence for the discerning collector. Key specifications: 41mm steel case; black dial with gilt accents; Manufacture Caliber MT5652 (COSC) automatic movement; 70-hour power reserve; steel bracelet; 200m water resistance; domed sapphire crystal.

Weight1.361 kg
BrandTudor
Model
Reference79830RB
MovementAutomatic
Case Material
Band Material
Size
Dial Color
BezelBlue/Red
CrystalSapphire
PapersYes
BoxYes
Year2025
ConditionPreowned
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Charles Morse
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Appreciate the help Derek, when it comes time for another I'll be back
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B C
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All of the brothers are a true delight to work with. I have nothing but incredible experiences buying from them.
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Anthony Israel
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Honestly, a great experience every time. Huge thanks to Derek for always working with me and helping me find the right watches. Honest people, great service, and you always know the watch has been fully inspected, serviced, and is 100% good to go. Very happy :)
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Jonathan Polanco
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Amazing experience with Caleb and Christian at Wolvyn Timepieces made buying my "rootbeer" over 4th of July weekend easy. no pressure just great service.
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Bill Witty
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Great selection. Beautiful watches. Highly recommended
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mike cook
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Purchased my first watch with guidance from Derek at Wolvyn's in Legacy East Shopping Center. I was impressed with Derek's knowledge of the market and all brands of premium watches. I chose the Omega Speedmaster Professional which was in pristine condition they had in store. Included original box, warranty and paperwork. Checkout their website for an impressive selection of all the top watch makers. Get ready Derek for i have my eye on my next selection!
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Jack Oak
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Great company to work with. Communication is key. Bought several time pieces and everything g was smooth and as advertised. Highly recommend!
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Texas Oilman
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I want to thank Derek for his help getting me out of a difficult situation. Thanks and see you in the future.
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Paul Berkowitz
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I worked with Josh after being referred to him by a friend and he was incredibly responsive. He called me on a Saturday within minutes of me sending him a text. He was patient in answering all of my questions and sourced an unworn Rolex watch I wanted within 24 hours. Josh and Wolvyn are the best!
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Bunny
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Was an absolute pleasure doing business with River city! Great and welcoming vibe and transparent, and great price for my gold 🤝

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