Tudor Black Bay 58 GMT Watch – 39mm Master Chronometer Dual-Time Dive Watch

Tudor Black Bay 58 GMT watch

The Tudor Black Bay 58 GMT watch is powered by the manufacture Caliber MT5450-U, a self-winding mechanical movement built with a bidirectional rotor system and an integrated GMT function. This movement has earned both COSC chronometer certification and full METAS Master Chronometer status, meaning the Tudor Black Bay 58 GMT watch has been independently tested for precision at two temperatures, across six positions, and at two different power reserve levels, along with verified resistance to magnetic fields. With an approximate power reserve of 65 hours, the Tudor Black Bay 58 GMT watch can sit unworn for more than two and a half days and still be accurate, a genuine practical advantage for a watch built around travel.

The case of the Tudor Black Bay 58 GMT watch is crafted from stainless steel measuring 39mm in diameter with a thickness of 12.8mm, offering the slimmer, more compact proportions the Black Bay 58 line is known for compared to the standard 41mm Black Bay GMT. The Tudor Black Bay 58 GMT watch features a 24-hour bidirectional rotatable bezel with a black and burgundy anodized aluminum insert, a color combination that helps distinguish day and night hours at a glance while echoing the warm palette of mid-century aviation instruments.

The dial is a subtly domed, satin black surface with softly radial brushing, finished with applied hour markers rendered in gilt, and protected by a sapphire crystal. Water resistance is rated to 200 meters, consistent with the broader Black Bay collection and well beyond what is needed for daily wear, swimming, or recreational diving.

Tudor brand heritage

The winding crown on the Tudor Black Bay 58 GMT watch is screwed down against the case to maintain water resistance and features the Tudor rose in relief, a signature brand detail. The seconds hand uses a lollipop design that recalls the brand’s earliest dive watches, tying this modern GMT reference directly back to its 1958 origins. The Tudor Black Bay 58 GMT watch is offered on a choice of a five-link bracelet, a three-link rivet-style bracelet, or a rubber strap, all fitted with Tudor’s T-fit rapid adjustment clasp for tool-free sizing changes on the wrist.

Design inspiration for the Tudor Black Bay 58 GMT watch comes directly from reference 7924, nicknamed the “Big Crown,” the first Tudor dive watch waterproof to 200 meters when it was released in 1958. That heritage model established the proportions and design language that define the entire Black Bay 58 line, and the Tudor Black Bay 58 GMT watch extends that legacy with a genuinely useful complication built for the modern traveler.

Craftsmanship, Quality Control, and Warranty

Every Tudor Black Bay 58 GMT watch movement undergoes COSC chronometer testing followed by additional METAS Master Chronometer certification, a two-stage process that evaluates precision, magnetic resistance, waterproofness, and power reserve performance under real operating conditions rather than laboratory ideals alone. Only movements that pass both certifications are permitted to be cased and sold under the Master Chronometer designation.

Classic Time Watches performs an additional pre-shipment inspection on every unit before it leaves our facility, verifying timing accuracy, bezel action, and bracelet or strap fit a second time. This extra layer of quality control reflects our position as an authorized retailer and gives customers added confidence that the watch arriving at their door matches exactly what was promised.

Every watch ships with Tudor’s manufacturer warranty, the original branded box, printed instructions, and an authenticity card recording the watch’s serial number. This documentation is preserved and included with every order, supporting future resale value, insurance purposes, and any warranty claims.

METAS Master Chronometer standards

Shipping, Protection, and Peace of Mind

Every order ships fully insured for its full retail value, so you are financially protected in the rare event of loss or damage during transit. Given the value of this piece, delivery requires a signature on receipt, ensuring the watch reaches you directly rather than being left unattended.

If your watch arrives with any shipping-related damage, photograph the packaging and item exactly as received and contact our support team within 48 hours. We will coordinate a replacement or repair at no additional cost while the insurance claim is processed on our end, so the risk of transit damage is never yours to carry.

We stand behind every watch we sell, backed by pre-shipment inspection and insured, signature-required delivery. To see more dive watches, GMTs, and Master Chronometer certified pieces from Tudor and other trusted brands, browse the full collection.

Frequently Asked Questions