Case #311 — Tudor Black Bay GMT “Pepsi” Opaline Dial Ref. 79830RB

Case #311 — Tudor Black Bay GMT “Pepsi” Opaline Dial  Ref. 79830RB

Status: Active Investigation
Condition: Excellent Pre-Owned
Scope: Box, Papers, and Cards
Year: 2025

🔎 Case Notes

The Tudor Black Bay GMT “Pepsi” Opaline Dial Ref. 79830RB takes one of Tudor’s most popular modern sport watches and gives it a cleaner, sharper personality.

While the classic Black Bay GMT is best known for its black dial, this version stands apart with the opaline white dial, which completely changes the watch’s character. The lighter dial gives the piece a more striking and contemporary feel, while also improving contrast against the red and blue “Pepsi” bezel and black GMT hand details.

The result is a watch that feels a little brighter, a little less expected, and considerably more distinctive on the wrist.

At 41mm, the Black Bay GMT offers a strong but wearable presence, balancing travel-watch practicality with Tudor’s rugged tool-watch design language. The combination of GMT functionality, 200m water resistance, and classic Black Bay styling makes it a highly versatile piece for daily wear or travel.

This example dates to 2025 and is presented in excellent pre-owned condition, showing only minimal signs of careful wear. The dial and sapphire crystal remain clean, and the bracelet presents very well.

The watch includes box, papers, and cards, and is currently sized with links 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: Opaline White with Luminous Markers
Movement: Tudor Automatic GMT Movement
Bracelet: Stainless Steel Bracelet
Bracelet Fit: Approximately 7.5" wrist
Water Resistance: 200 m
Year: 2025
Accessories: Box, Papers, and Cards

Condition Notes: Excellent pre-owned condition with minimal signs of wear. Dial and crystal remain clean; bracelet presents very well.

🌍 The GMT Advantage

The Black Bay GMT allows the wearer to track multiple time zones simultaneously, making it one of the most practical watches in Tudor’s lineup.

The opaline dial adds a more uncommon and visually striking twist to the formula, giving the watch stronger contrast and a noticeably different presence compared to the standard black dial version.

🌟 Collector Provenance

The opaline dial GMT has become especially popular among collectors looking for a Black Bay GMT with a bit more personality and visual distinction.

Examples in excellent condition with box, papers, and cards, particularly from a recent year like 2025, remain highly desirable for collectors looking for a modern, fully documented Tudor GMT.

🌟 Celebrity Provenance

Tudor watches have become increasingly visible among athletes, explorers, and collectors who appreciate the brand’s combination of heritage styling and modern reliability.

🧾 From the Case File

“Recovered in excellent pre-owned condition with box, papers, and cards dated 2025. Bracelet currently sized with links for approximately a 7.5-inch wrist. Opaline dial Tudor GMT with classic Pepsi bezel.”

🗝️ BST Verdict

Case #311 delivers one of Tudor’s most compelling modern travel watches in its cleanest and most eye-catching configuration. With its opaline dial, Pepsi bezel, and documented 2025 set, it stands out as a fresh take on a proven GMT platform.

👉 Every case deserves a closer look.