Tudor Black Bay 58 39mm 7939A1A0NU

Overview

The new-generation Black Bay 58 carried forward the 39mm case and slim profile that made the original BB58 the most wearable piece in the Black Bay family — and upgraded the movement specification to a standard that few watches at this price point reach. The 7939A1A0NU is the three-link bracelet configuration of that update, the BB58 in its most tool-watch-oriented form. The Calibre MT5400-U holds both COSC and METAS certification simultaneously — a combination uncommon below the Omega price tier, where METAS originated.

The case is 39mm stainless steel at 11.7mm thick — the slim profile that distinguishes the BB58 from the BB41 and makes it the more versatile dimension in the Black Bay range. The unidirectional rotating bezel carries a matte black anodized aluminum insert; the matte black dial runs a reduced-text layout with snowflake hands carrying Chromalight fill. The three-link Oyster-style bracelet is the standard BB58 configuration — it keeps the watch in tool-watch territory without the dressed character the five-link bracelet introduces. No date.

The Calibre MT5400-U is Tudor's upgraded in-house automatic, carrying COSC certification (±4 seconds per day under standard conditions) alongside METAS Master Chronometer certification — the more demanding standard that additionally requires anti-magnetic resistance to 15,000 gauss and accuracy between 0 and +5 seconds per day on the wrist. The combination of both certifications on a single movement is unusual at this price point. Power reserve is 65 hours with a bidirectional rotor; water resistance is 200 metres via screw-down crown.

Within the BB58 range, the choice between three-link and five-link bracelet determines the watch's character more than any other variable: the three-link keeps the BB58 as a tool watch, the five-link moves it toward a professional-casual crossover. Against the Burgundy and Navy Blue configurations in the same bracelet format, the black dial 7939A1A0NU is the most neutrally positioned — it carries the dual-certification advantage without a colour story that limits context. We see the MT5400-U upgrade as what completes the BB58's value proposition: COSC and METAS dual certification at this price level sits below what comparable anti-magnetic, dual-certified movements cost from any other manufacture. Brand new, unworn, complete with box and papers dated May 2026, at RM17,300..

Specifications

Condition

Brand New, Unworn Condition, Complete Original Set with Box and Papers dated May 2026.

Warranty

5 year original manufacturer warranty.