Tudor Black Bay GMT "Coke" Original Box & Papers AMAZING CONDITION

Tudor Black Bay GMT Coke watch: The Black Bay 58 GMT is the watch Tudor fans spent six years begging for, and it was worth every Reddit thread, every forum post, and every passive-aggressive comment under a Watches & Wonders livestream. Tudor already had a GMT in the lineup with the 41mm Black Bay GMT launched in 2018, but at 14.6mm thick it wore like a hockey puck. The Black Bay 58 GMT marries the compact, universally wearable 39mm case of the BB58 with a proper integrated GMT complication, showcasing one of the industry's most impressive movements. The Manufacture Caliber MT5450-U, produced by Kenissi—Tudor's movement-making joint venture with Chanel—is built on architecture that's become the backbone of the modern Black Bay family. With integrated GMT architecture, the dual-time zone function allows for a jumping local-time hour hand that can be set independently and features a 24-hour GMT hand plus an instantaneous date, making it the preferred "flyer" GMT configuration that collectors cherish.

The watch boasts a non-magnetic silicon balance spring, free-sprung variable-inertia balance, and traversing bridge with two-point anchoring, regulating at 28,800 vph with a 65-hour power reserve. Impressively, it carries both COSC chronometer and METAS Master Chronometer certifications—tested to 0/+5 seconds per day and anti-magnetic to 15,000 gauss. Tudor under-promises with -2/+4 seconds on their watches; METAS holds them to an even tighter five-second window.

What sets this particular reference apart is its bezel. The "Coke" colorway features black and burgundy on a bidirectional 24-hour rotating ring made of anodized aluminum with gilt markings, evoking vintage Rolex GMT-Masters. The domed matte black dial showcases gilt applied indices and matching gilt snowflake hands, providing warmth with SuperLuminova fills. This aesthetically pleasing watch looks aged, even straight out of the box. At 39mm wide, 47.8mm lug-to-lug, and only 12.8mm thick, it offers a more wearable option than previous Tudor GMT models—improving on thickness significantly. The redesigned screw-down crown blends seamlessly with the case, while the three-link riveted steel bracelet with T-fit quick-adjust clasp rounds out this travel-friendly package. Truly, the Tudor Black Bay GMT Coke watch is the compact GMT that fans desired from Tudor, in the colorway that everyone wanted from Rolex.

KEY DETAILS
Name: Tudor Black Bay 58 GMT "Coke"
Reference: 7939G1A0NRU
Case Material: Stainless Steel (polished and satin-brushed)
Case Diameter: 39mm
Case Thickness: 12.8mm
Lug-to-Lug: 47.8mm
Lug Width: 20mm
Bezel: Bidirectional 24-hour rotating, stainless steel with black and burgundy anodized aluminum insert, gilt markings
Crystal: Domed sapphire
Caseback: Solid steel, screw-down
Dial: Black, domed, matte with radial brush, gilt applied hour markers, date window at 3 o'clock
Hands: Snowflake (gilt, hours and GMT), lollipop seconds hand
Lume: SuperLuminova (hands and indices, warm tone)
Movement: Tudor Manufacture Caliber MT5450-U
Jewels: 34
Frequency: 28,800 vph (4 Hz)
Power Reserve: Approx. 65 hours
Precision: COSC Chronometer + METAS Master Chronometer certified (0/+5 sec/day per METAS)
Magnetic Resistance: Up to 15,000 gauss
Functions: Hours, minutes, seconds, GMT 24-hour hand, instantaneous date
Water Resistance: 200 meters / 660 feet
Bracelet: Oyster with Tudor T-fit quick-adjust clasp
Crown: Stainless steel, screw-down, flush-mounted design
Special Features: Integrated "flyer" GMT complication, silicon non-magnetic balance spring, free-sprung variable-inertia balance, tungsten monobloc openworked bi-directional rotor.