WATCH BUYER · AI
Tudor Black Bay Fifty-Eight Bronze — 79012M

Tudor

Black Bay Fifty-Eight Bronze

79012M

Vintage diver soul cast in warm bronze — the Fifty-Eight at its most elemental.

Estimated market value
$4,150
Confidence: High

An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.

Get an instant offer

Free insured shipping. Paid within 48 hours of inspection.

Overview

The Tudor Black Bay Fifty-Eight Bronze ref. 79012M is a 39 mm dive watch that pairs the compact, vintage-proportioned Fifty-Eight case with a bronze construction, producing a warm, tactile character distinct from its steel siblings. Its brown bronze dial echoes the case material, creating a tonal coherence that deepens as the watch ages and the bronze develops its natural patina. Powered by Tudor's in-house Cal. MT5400, the reference sits at the intersection of heritage aesthetics and modern manufacture movement technology.

History

The Black Bay Fifty-Eight line was introduced to address collector demand for a smaller, more historically faithful Black Bay, drawing proportional inspiration from Tudor's mid-twentieth-century reference 7924. The Bronze variant of the Fifty-Eight extended a material exploration Tudor had already undertaken in the larger Black Bay Bronze, applying it to the more intimate 39 mm case. Reference 79012M was produced across the first half of the 2020s, occupying a distinct niche within the Black Bay family before being succeeded by subsequent iterations. Its relatively focused production window has made it a notable chapter in the ongoing Bronze sub-family of the line.

Notable points

  • The 39 mm bronze case is sized to reflect Tudor's vintage dive references of the 1950s and 1960s, offering a noticeably more wrist-friendly presence than the standard 41 mm Black Bay.
  • Bronze construction means each example develops a unique patina over time, ensuring no two watches age identically.
  • The brown bronze dial reinforces the monochromatic warmth of the case, a deliberate design choice that distinguishes the reference from Tudor's steel and gold Black Bay Fifty-Eight variants.
  • Cal. MT5400 is a Tudor manufacture movement featuring a silicon balance spring, a 70-hour power reserve, and COSC-level chronometric certification.
  • The reference carries a water resistance rating of 200 metres, consistent with the tool-watch heritage of the Black Bay family.

Specifications

Brand
Tudor
Collection
Black Bay
Reference
79012M
Years of production
2021 – 2024
Case
39mm Bronze
Case material
Bronze
Case diameter
39 mm
Movement
Cal. MT5400
Crystal
Sapphire
Dial
Brown bronze
Bezel
Brown aluminium unidirectional dive
Bracelet / strap
Bronze-tone fabric or bracelet
Water resistance
200 m
Power reserve
70 h
Type
Diver
Worn as
Men's
Also known as
BB58 Bronze, ブラックベイ, 碧湾58, 碧湾1958, BB58, 碧湾

Related watches