Tudor
Black Bay Dark
79230DK
The Black Bay in full shadow — 41 mm of PVD-blackened intent.
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Overview
The Tudor Black Bay Dark ref. 79230DK is a blacked-out interpretation of the brand's celebrated heritage diver, clothing the 41 mm steel case in a PVD black coating and pairing it with an all-black dial for a deliberately stealthy aesthetic. Introduced in 2016, it carried Tudor's in-house Cal. MT5602 automatic movement, placing serious horological credentials beneath its monochromatic exterior. Production continued until 2021, giving the reference a focused, well-defined run within the broader Black Bay family.
History
The Black Bay line was revived by Tudor in the early 2010s as a direct homage to the brand's own mid-twentieth-century diving watches, drawing on archival case shapes, snowflake hands, and domed crystals. The Dark variant emerged in 2016 as a more tactical, uniform expression of that heritage, applying PVD treatment to the case, crown, and bracelet hardware to eliminate any contrast. The Cal. MT5602 — a COSC-certified movement developed entirely in-house — had debuted in the Black Bay family shortly before, marking a significant step in Tudor's push toward movement independence. By the time the 79230DK was discontinued around 2021, it had established a distinct collector identity separate from the standard Black Bay references.
Notable points
- 41 mm steel case finished in PVD black coating gives the watch a uniform, non-reflective profile consistent across case, crown, and hardware.
- Powered by the in-house Cal. MT5602, a COSC-certified automatic movement with a 70-hour power reserve and a silicon balance spring.
- Black dial with blackened snowflake hands and applied indices maintains the all-dark theme while preserving the vintage-inspired dial architecture of the Black Bay line.
- Production spanned 2016 to 2021, making the 79230DK a defined, single-generation reference rather than an open-ended catalogue staple.
- The Dark sits within a long tradition of tool-watch blacked-out variants, yet grounds its aesthetic in Tudor's own archival diving heritage rather than purely military styling.
Specifications
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