Black Bay Fifty-Eight Navy Blue

Name: Tudor Black Bay Fifty-Eight Navy Blue
Brand: Tudor
SKU: 79030B

79030B

The Black Bay distilled — 39 mm of navy blue diving heritage

Estimated market value

$3,600

Confidence: Moderate

Original retail: $4,625

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

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Overview

The Tudor Black Bay Fifty-Eight Navy Blue (ref. 79030B) is a compact, diver-oriented wristwatch that pairs a 39 mm stainless steel case with a richly saturated navy blue dial. Introduced in 2020, it sits within the broader Black Bay family as a size-conscious interpretation of Tudor's vintage diving aesthetic. The reference takes its "Fifty-Eight" designation from the year 1958, when Tudor produced one of its earliest depth-rated divers.

History

The Black Bay line was revived by Tudor in the early 2010s as a modern reinterpretation of the brand's mid-twentieth-century diving watches, drawing on archival case shapes, gilt-style printing, and the distinctive "snowflake" hand option. The Fifty-Eight sub-line emerged to address collector demand for a smaller, more wrist-friendly diameter than the standard 41 mm Black Bay. The Navy Blue variant arrived in 2020, introducing a monochromatic colour story that unified the dial, fabric strap, and overall presentation. It quickly became one of the more discussed references in the line, appreciated for its restrained palette and versatile wearing character.

Notable points

The 39 mm case diameter references the proportions of Tudor's vintage 1950s and 1960s divers, making it notably more compact than the standard Black Bay.
Power is supplied by the in-house Tudor calibre MT5402, a COSC-certified movement offering a 70-hour power reserve and fitted with a silicon balance spring.
The navy blue dial creates a near-monochromatic effect when paired with the reference's matching blue fabric strap, a deliberate design choice that sets it apart from earlier Black Bay colourways.
Snowflake-style hands — a hallmark borrowed from Tudor's archival dive references of the 1960s and 1970s — are retained on this reference, reinforcing its historical lineage.
The domed dial and domed sapphire crystal contribute to a slightly vintage profile on the wrist, echoing the plexi-crystal aesthetics of mid-century tool watches.