Tudor Black Bay Pro M79470-0001

The Tudor Black Bay Pro (ref. M79470-0001) is a 39mm stainless steel GMT watch on a riveted steel bracelet, introduced in 2022. It combines a fixed, satin-brushed 24-hour bezel and a yellow "Snowflake" GMT hand — a design that reads as Tudor's take on the vintage Rolex Explorer II ref. 1655 — with the in-house, COSC-certified Manufacture Calibre MT5652, which offers a true jumping-hour GMT function and 70 hours of power reserve.

Tudor unveiled the Black Bay Pro at Watches & Wonders on March 30, 2022. The steel-bracelet reference, M79470-0001, launched at a retail price of $4,000, with fabric-strap (M79470-0002) and leather/hybrid-strap (M79470-0003) versions priced at $3,675.

The watch's fixed, engraved 24-hour bezel and central yellow GMT hand read as a Tudor interpretation of the Rolex Explorer II ref. 1655, the early-1970s tool watch developed for cave explorers and known among collectors as "the Freccione" for its orange 24-hour hand. Reviewer coverage of the Black Bay Pro repeatedly frames the watch against that lineage, describing it as Tudor's own version of the 1655 concept rather than a variant of the existing Black Bay GMT.

In 2025, Tudor extended the line for the first time since its 2022 introduction, adding a white opaline dial across three new references — M79470-0004 on the steel bracelet, and M79470-0005/-0006 on fabric and hybrid rubber-leather straps, announced April 10, 2025. Retail prices across the collection rose by $375 between the 2022 launch and the 2025 opaline additions.

The Black Bay Pro runs on Tudor's Manufacture Calibre MT5652, built by movement maker Kenissi, beating at 28,800 vph (4Hz) with 28 jewels, a silicon balance spring, and a free-sprung variable inertia balance. The movement is COSC-certified as a chronometer, with Tudor's own adjustment tolerance quoted at -2/+4 seconds per day, and delivers roughly 70 hours of power reserve.

The GMT complication is a "true," or flyer, GMT: the central 24-hour "Snowflake" hand tracks a second time zone, while the local hour hand can be jumped independently in one-hour increments — forward or backward — without stopping the seconds or disturbing the running minutes. The date is synchronized to the local hour hand rather than the GMT hand.

Tudor's architecture for the MT5652 builds the GMT function directly into the base movement rather than adding it as a module, consistent with the adaptable in-house caliber platform the brand has used across other Black Bay movements.

Reviewers consistently flag the Black Bay Pro's 14.6mm case height as the defining trait of how it wears. The Balance Coq describes it as a watch that "wears tall" despite its 39mm width, noting the slab-sided case "sits proudly — some would say stubbornly — on the wrist," and credits the roughly 47mm lug-to-lug and the bracelet's T-Fit clasp for keeping the fit manageable on smaller wrists.

Writing for Teddy Baldassarre, Blake Buettner found the case "wears a bit tanky" and said Tudor's decision not to adopt the slimmer 12.8mm case used on the Black Bay 58 GMT was "one glaring omission," while still concluding the watch performs acceptably if buyers calibrate their expectations going in.

Other reviewers were more forgiving in practice. Beyond The Dial called wearing the watch "a pleasure to look down at," noting the added case height from the complicated movement wore better than pre-release photos suggested, and praised the balance between the steel case, off-white lume, yellow GMT hand, and matte black dial as achieving "near-perfect color balance and proportionality." Exquisite Timepieces similarly reported that "the Pro manages to wear like one despite its heft," citing comfortable all-day wear and sizing flexibility across wrist sizes.

The Black Bay Pro launched in 2022 as a trio of black-dial references sharing the same 39mm case and MT5652 movement: M79470-0001 on the riveted steel bracelet ($4,000 at launch), M79470-0002 on a black fabric strap with a yellow stripe, and M79470-0003 on a hybrid rubber-and-leather strap (both $3,675 at launch).

In 2025, Tudor added a white opaline dial variant — sometimes referred to informally as the "Polar" — across three parallel references: M79470-0004 on the steel bracelet, M79470-0005 on a black-and-yellow Jacquard fabric strap, and M79470-0006 on the hybrid rubber-leather strap. The opaline dial uses black-outlined ceramic hour indices for contrast against the white background, with the same yellow GMT hand and 24-hour bezel as the black-dial versions. This was the first expansion of the Black Bay Pro range since its 2022 introduction.

The Black Bay Pro is sold through Tudor boutiques and authorized dealers. At its March 2022 launch, the steel-bracelet reference M79470-0001 retailed for $4,000, with strap versions at $3,675. By the time of the 2025 opaline additions, US retail pricing had risen: Teddy Baldassarre and Exquisite Timepieces, both authorized Tudor retailers, list the steel-bracelet references (including M79470-0004) at $4,375 and the strap references at $4,050 — a $375 increase across the board from 2022 launch pricing.

Exquisite Timepieces notes a used-market range of roughly $3,700–$4,000 for the Black Bay Pro depending on condition, though secondary-market prices vary by dealer and completeness of the original set. Buyers choosing between references are trading off bracelet versus strap (affecting price) and black versus opaline dial, since case dimensions, movement, and water resistance are identical across the M79470 family.