Case #308 — Tudor Black Bay GMT “Pepsi” Ref. 79830RB

Case #308 — Tudor Black Bay GMT “Pepsi”  Ref. 79830RB

Status: Active Investigation
Condition: Very Good Pre-Owned
Scope: Box and Warranty Card
Year: 2020

🔎 Case Notes

The Tudor Black Bay GMT Ref. 79830RB stands as one of the brand’s most recognizable modern sport watches — combining Tudor’s vintage-inspired design language with practical GMT functionality.

The defining feature is the red and blue “Pepsi” bezel, a classic colorway synonymous with dual-time watches. Paired with the matte black dial and Tudor’s signature snowflake hands, the watch delivers strong legibility and a timeless tool-watch aesthetic.

At 41mm, the case offers a solid wrist presence while remaining wearable for daily use. The robust stainless steel construction and 200m water resistance keep it firmly within the Black Bay family’s dive-watch heritage, while the GMT function adds everyday practicality.

This example dates to 2020 and is presented in very good pre-owned condition, showing honest signs of wear consistent with careful use. The dial and sapphire crystal remain clean, and the case retains strong lines.

The watch includes its box and warranty card, and is currently sized to fit approximately a 7.5-inch wrist.

🕰️ The Evidence

Reference: 79830RB
Model: Tudor Black Bay GMT
Case: Stainless Steel
Case Size: 41 mm
Bezel: Bi-Directional Rotating GMT Bezel with Red and Blue Aluminum Insert
Crystal: Sapphire
Dial: Black with Luminous Markers
Movement: Tudor Automatic GMT Movement
Bracelet: Stainless Steel Bracelet
Bracelet Fit: Approximately 7.5" wrist
Water Resistance: 200 m
Year: 2020
Accessories: Box and Warranty Card

Condition Notes: Very good pre-owned condition with visible but moderate wear consistent with regular use. Dial and crystal remain clean.

🌍 The GMT Advantage

The GMT complication allows for tracking multiple time zones simultaneously, making this watch a practical choice for travel or global communication.

The Pepsi bezel not only enhances functionality but also ties the watch to one of the most iconic design traditions in watchmaking.

🌟 Collector Provenance

Examples that retain box and warranty card, even without full accessory sets, remain desirable among collectors — especially when paired with solid condition and honest wear.

The Black Bay GMT continues to maintain strong demand thanks to its heritage styling and everyday usability.

🌟 Celebrity Provenance

Tudor watches have gained widespread recognition among athletes, explorers, and enthusiasts who appreciate the brand’s blend of classic design and modern engineering.

🧾 From the Case File

“Recovered in very good pre-owned condition with box and warranty card dated 2020. Bracelet currently sized for approximately a 7.5-inch wrist. Classic Tudor ‘Pepsi’ GMT.”

🗝️ BST Verdict

Case #308 delivers a well-balanced, highly recognizable GMT with strong everyday appeal. With its iconic bezel, solid condition, and documented 2020 set, it remains a staple piece within the Tudor lineup.

👉 Every case deserves a closer look.